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<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>222100</bug_id>
          
          <creation_ts>2021-02-18 05:25:34 -0800</creation_ts>
          <short_desc>[css-grid] Fix min/max widths of grid affected by ancestor</short_desc>
          <delta_ts>2021-08-26 15:34:48 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>CSS</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>REOPENED</bug_status>
          <resolution></resolution>
          
          <see_also>https://bugs.webkit.org/show_bug.cgi?id=229586</see_also>
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          <dependson>222503</dependson>
          
          <everconfirmed>1</everconfirmed>
          <reporter>zsun</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>changseok</cc>
    
    <cc>commit-queue</cc>
    
    <cc>esprehn+autocc</cc>
    
    <cc>ews-watchlist</cc>
    
    <cc>glenn</cc>
    
    <cc>jenner</cc>
    
    <cc>jfernandez</cc>
    
    <cc>kondapallykalyan</cc>
    
    <cc>obrufau</cc>
    
    <cc>pdr</cc>
    
    <cc>rego</cc>
    
    <cc>svillar</cc>
    
    <cc>webkit-bug-importer</cc>
    
    <cc>zalan</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1730821</commentid>
    <comment_count>0</comment_count>
    <who name="">zsun</who>
    <bug_when>2021-02-18 05:25:34 -0800</bug_when>
    <thetext>The following WPT tests failed in Safari 

css/css-grid/grid-items/grid-items-percentage-paddings-002.html
css/css-grid/grid-items/grid-items-percentage-paddings-vertical-lr-002.html 
css/css-grid/grid-items/grid-items-percentage-paddings-vertical-rl-002.htm</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1730823</commentid>
    <comment_count>1</comment_count>
      <attachid>420823</attachid>
    <who name="">zsun</who>
    <bug_when>2021-02-18 05:40:49 -0800</bug_when>
    <thetext>Created attachment 420823
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1730894</commentid>
    <comment_count>2</comment_count>
      <attachid>420837</attachid>
    <who name="">zsun</who>
    <bug_when>2021-02-18 09:35:46 -0800</bug_when>
    <thetext>Created attachment 420837
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1732109</commentid>
    <comment_count>3</comment_count>
      <attachid>420837</attachid>
    <who name="Javier Fernandez">jfernandez</who>
    <bug_when>2021-02-22 06:13:40 -0800</bug_when>
    <thetext>Comment on attachment 420837
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=420837&amp;action=review

&gt; Source/WebCore/ChangeLog:9
&gt; +        Before update logical-width, for element that needs prefrredWidth recalcution,

s/prefrredWidth/preferredWidth

&gt; Source/WebCore/rendering/RenderBox.cpp:2485
&gt; +        if (cb-&gt;needsPreferredWidthsRecalculation() &amp;&amp; !box-&gt;preferredLogicalWidthsDirty()) {

I supposed box-&gt;preferredLogicalWidthsDirty() is false for sure, otherwise we should have entered in the branch above, right ? 

Perhaps you meant &quot;cb-&gt;&quot; here ? Just wondering.

&gt; Source/WebCore/rendering/RenderBox.cpp:2498
&gt; +        // Laying out this object means that its containing block is also being laid out. This object is special, in that its min/max widths depend on

Nit, I think it&apos;d be clearer if we put the comment just above the if statement.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1732500</commentid>
    <comment_count>4</comment_count>
      <attachid>421305</attachid>
    <who name="">zsun</who>
    <bug_when>2021-02-23 05:36:38 -0800</bug_when>
    <thetext>Created attachment 421305
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1732501</commentid>
    <comment_count>5</comment_count>
    <who name="">zsun</who>
    <bug_when>2021-02-23 05:37:36 -0800</bug_when>
    <thetext>(In reply to Javier Fernandez from comment #3)
&gt; Comment on attachment 420837 [details]
&gt; Patch
&gt; 
&gt; View in context:
&gt; https://bugs.webkit.org/attachment.cgi?id=420837&amp;action=review
&gt; 
&gt; &gt; Source/WebCore/ChangeLog:9
&gt; &gt; +        Before update logical-width, for element that needs prefrredWidth recalcution,
&gt; 
&gt; s/prefrredWidth/preferredWidth
&gt; 
&gt; &gt; Source/WebCore/rendering/RenderBox.cpp:2485
&gt; &gt; +        if (cb-&gt;needsPreferredWidthsRecalculation() &amp;&amp; !box-&gt;preferredLogicalWidthsDirty()) {
&gt; 
&gt; I supposed box-&gt;preferredLogicalWidthsDirty() is false for sure, otherwise
&gt; we should have entered in the branch above, right ? 
&gt; 
&gt; Perhaps you meant &quot;cb-&gt;&quot; here ? Just wondering.
&gt; 
&gt; &gt; Source/WebCore/rendering/RenderBox.cpp:2498
&gt; &gt; +        // Laying out this object means that its containing block is also being laid out. This object is special, in that its min/max widths depend on
&gt; 
&gt; Nit, I think it&apos;d be clearer if we put the comment just above the if
&gt; statement.

Comments have addressed. Thank you!</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1732521</commentid>
    <comment_count>6</comment_count>
      <attachid>421305</attachid>
    <who name="Javier Fernandez">jfernandez</who>
    <bug_when>2021-02-23 07:34:10 -0800</bug_when>
    <thetext>Comment on attachment 421305
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=421305&amp;action=review

&gt; Source/WebCore/rendering/RenderBox.cpp:2479
&gt; +        // If the preferred widths are already dirty at this point (during layout), it actually means that we never need to calculate them, since that should

I think we can move the comments above the if clause, and remove the brackets.

&gt; Source/WebCore/rendering/RenderBox.cpp:2485
&gt; +        // If our containing block also has min/max widths that are affected by the ancestry, we have already dealt with this object as well. Avoid

Ditto

&gt; Source/WebCore/rendering/RenderBox.cpp:2496
&gt; +        if (shouldRecalculateMinMaxWidthsAffectedByAncestor(this)) {

Why not using a composed conditional clause instead two nested if ?

&gt; Source/WebCore/rendering/RenderBox.cpp:2497
&gt; +        // Laying out this object means that its containing block is also being laid out. This object is special, in that its min/max widths depend on

We could move the comments here as well, as I suggested before.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1732544</commentid>
    <comment_count>7</comment_count>
      <attachid>421316</attachid>
    <who name="">zsun</who>
    <bug_when>2021-02-23 08:44:17 -0800</bug_when>
    <thetext>Created attachment 421316
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1732545</commentid>
    <comment_count>8</comment_count>
    <who name="">zsun</who>
    <bug_when>2021-02-23 08:45:10 -0800</bug_when>
    <thetext>(In reply to Javier Fernandez from comment #6)
&gt; Comment on attachment 421305 [details]
&gt; Patch
&gt; 
&gt; View in context:
&gt; https://bugs.webkit.org/attachment.cgi?id=421305&amp;action=review
&gt; 
&gt; &gt; Source/WebCore/rendering/RenderBox.cpp:2479
&gt; &gt; +        // If the preferred widths are already dirty at this point (during layout), it actually means that we never need to calculate them, since that should
&gt; 
&gt; I think we can move the comments above the if clause, and remove the
&gt; brackets.
&gt; 
&gt; &gt; Source/WebCore/rendering/RenderBox.cpp:2485
&gt; &gt; +        // If our containing block also has min/max widths that are affected by the ancestry, we have already dealt with this object as well. Avoid
&gt; 
&gt; Ditto
&gt; 
&gt; &gt; Source/WebCore/rendering/RenderBox.cpp:2496
&gt; &gt; +        if (shouldRecalculateMinMaxWidthsAffectedByAncestor(this)) {
&gt; 
&gt; Why not using a composed conditional clause instead two nested if ?
&gt; 
&gt; &gt; Source/WebCore/rendering/RenderBox.cpp:2497
&gt; &gt; +        // Laying out this object means that its containing block is also being laid out. This object is special, in that its min/max widths depend on
&gt; 
&gt; We could move the comments here as well, as I suggested before.

All review comments have been addressed. Thank you!</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1732663</commentid>
    <comment_count>9</comment_count>
      <attachid>421316</attachid>
    <who name="Javier Fernandez">jfernandez</who>
    <bug_when>2021-02-23 13:00:32 -0800</bug_when>
    <thetext>Comment on attachment 421316
Patch

r=me</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1733058</commentid>
    <comment_count>10</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2021-02-24 13:35:45 -0800</bug_when>
    <thetext>Committed r273435: &lt;https://commits.webkit.org/r273435&gt;

All reviewed patches have been landed. Closing bug and clearing flags on attachment 421316.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1733059</commentid>
    <comment_count>11</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2021-02-24 13:36:17 -0800</bug_when>
    <thetext>&lt;rdar://problem/74711256&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1733989</commentid>
    <comment_count>12</comment_count>
    <who name="Robert Jenner">jenner</who>
    <bug_when>2021-02-26 14:49:45 -0800</bug_when>
    <thetext>It appears this test may have broken another test:

imported/w3c/web-platform-tests/css/css-flexbox/percentage-max-height-003.html  

Reported at bug:

https://bugs.webkit.org/show_bug.cgi?id=222485</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1734071</commentid>
    <comment_count>13</comment_count>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2021-02-26 16:43:44 -0800</bug_when>
    <thetext>Re-opened since this is blocked by bug 222503</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1735433</commentid>
    <comment_count>14</comment_count>
      <attachid>422134</attachid>
    <who name="">zsun</who>
    <bug_when>2021-03-03 12:27:25 -0800</bug_when>
    <thetext>Created attachment 422134
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1735796</commentid>
    <comment_count>15</comment_count>
      <attachid>422134</attachid>
    <who name="Javier Fernandez">jfernandez</who>
    <bug_when>2021-03-04 05:58:05 -0800</bug_when>
    <thetext>Comment on attachment 422134
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=422134&amp;action=review

&gt; Source/WebCore/ChangeLog:8
&gt; +        It&apos;s a reland of r273435, which got reverted because it broken 

nit: s/broken/broke

&gt; Source/WebCore/rendering/RenderBox.cpp:2499
&gt; +    if (needsPreferredWidthsRecalculation() &amp;&amp; shouldRecalculateMinMaxWidthsAffectedByAncestor(this) &amp;&amp; parent()-&gt;preferredLogicalWidthsDirty()) {

I think we should have a check here for parent(); I believe it&apos;s not guaranteed that it&apos;s not null.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1735809</commentid>
    <comment_count>16</comment_count>
      <attachid>422134</attachid>
    <who name="Oriol Brufau">obrufau</who>
    <bug_when>2021-03-04 06:38:50 -0800</bug_when>
    <thetext>Comment on attachment 422134
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=422134&amp;action=review

&gt;&gt; Source/WebCore/rendering/RenderBox.cpp:2499
&gt;&gt; +    if (needsPreferredWidthsRecalculation() &amp;&amp; shouldRecalculateMinMaxWidthsAffectedByAncestor(this) &amp;&amp; parent()-&gt;preferredLogicalWidthsDirty()) {
&gt; 
&gt; I think we should have a check here for parent(); I believe it&apos;s not guaranteed that it&apos;s not null.

Why does WebKit need parent()-&gt;preferredLogicalWidthsDirty() if Chromium doesn&apos;t have it?
And maybe the condition should be moved into shouldRecalculateMinMaxWidthsAffectedByAncestor() ?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1735910</commentid>
    <comment_count>17</comment_count>
      <attachid>422253</attachid>
    <who name="">zsun</who>
    <bug_when>2021-03-04 10:24:00 -0800</bug_when>
    <thetext>Created attachment 422253
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1736383</commentid>
    <comment_count>18</comment_count>
      <attachid>422253</attachid>
    <who name="Sergio Villar Senin">svillar</who>
    <bug_when>2021-03-05 09:37:41 -0800</bug_when>
    <thetext>Comment on attachment 422253
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=422253&amp;action=review

What I don&apos;t exactly understand is which cases fix this and why the setPreferredLogicalWidthsDirty() is not invoked in the specific subclass RenderFlexibleBox, RenderGrid... etc

&gt; Source/WebCore/rendering/RenderBox.cpp:2490
&gt; +    }

You can write this in a more compact way using some C++ fancyness

if (const RenderBox* cb = box-&gt;containingBlock(); !cb-&gt;preferredLogicalWidthsDirty())
    return false;

Also I guess this function is only meant to be used from updateLogicalWidth(). If that&apos;s indeed the case it&apos;d be better to move it to a lambda inside that method.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1736384</commentid>
    <comment_count>19</comment_count>
      <attachid>422253</attachid>
    <who name="Sergio Villar Senin">svillar</who>
    <bug_when>2021-03-05 09:37:43 -0800</bug_when>
    <thetext>Comment on attachment 422253
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=422253&amp;action=review

What I don&apos;t exactly understand is which cases fix this and why the setPreferredLogicalWidthsDirty() is not invoked in the specific subclass RenderFlexibleBox, RenderGrid... etc

&gt; Source/WebCore/rendering/RenderBox.cpp:2490
&gt; +    }

You can write this in a more compact way using some C++ fancyness

if (const RenderBox* cb = box-&gt;containingBlock(); !cb-&gt;preferredLogicalWidthsDirty())
    return false;

Also I guess this function is only meant to be used from updateLogicalWidth(). If that&apos;s indeed the case it&apos;d be better to move it to a lambda inside that method.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1746443</commentid>
    <comment_count>20</comment_count>
      <attachid>425002</attachid>
    <who name="">zsun</who>
    <bug_when>2021-04-02 03:11:02 -0700</bug_when>
    <thetext>Created attachment 425002
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1746773</commentid>
    <comment_count>21</comment_count>
      <attachid>425089</attachid>
    <who name="">zsun</who>
    <bug_when>2021-04-03 03:25:19 -0700</bug_when>
    <thetext>Created attachment 425089
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1747870</commentid>
    <comment_count>22</comment_count>
      <attachid>425089</attachid>
    <who name="Javier Fernandez">jfernandez</who>
    <bug_when>2021-04-07 06:50:29 -0700</bug_when>
    <thetext>Comment on attachment 425089
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=425089&amp;action=review

r=me

&gt; Source/WebCore/rendering/RenderBlock.cpp:-639
&gt; -    

Please, remove these empty lines</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1747886</commentid>
    <comment_count>23</comment_count>
      <attachid>425395</attachid>
    <who name="">zsun</who>
    <bug_when>2021-04-07 08:16:39 -0700</bug_when>
    <thetext>Created attachment 425395
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1748296</commentid>
    <comment_count>24</comment_count>
      <attachid>425506</attachid>
    <who name="">zsun</who>
    <bug_when>2021-04-08 07:44:13 -0700</bug_when>
    <thetext>Created attachment 425506
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1748667</commentid>
    <comment_count>25</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2021-04-09 02:18:04 -0700</bug_when>
    <thetext>Committed r275754 (236332@main): &lt;https://commits.webkit.org/236332@main&gt;

All reviewed patches have been landed. Closing bug and clearing flags on attachment 425506.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1787837</commentid>
    <comment_count>26</comment_count>
    <who name="alan">zalan</who>
    <bug_when>2021-08-26 15:34:48 -0700</bug_when>
    <thetext>This patch has been reverted in r281662. See https://bugs.webkit.org/show_bug.cgi?id=229586#c0 for more info.</thetext>
  </long_desc>
      
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            <attachid>420823</attachid>
            <date>2021-02-18 05:40:49 -0800</date>
            <delta_ts>2021-02-18 09:35:41 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-222100-20210218134047.patch</filename>
            <type>text/plain</type>
            <size>12704</size>
            <attacher>zsun</attacher>
            
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          </attachment>
          <attachment
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              ispatch="1"
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            <attachid>420837</attachid>
            <date>2021-02-18 09:35:46 -0800</date>
            <delta_ts>2021-02-23 05:36:33 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-222100-20210218173545.patch</filename>
            <type>text/plain</type>
            <size>10783</size>
            <attacher>zsun</attacher>
            
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            <attachid>421305</attachid>
            <date>2021-02-23 05:36:38 -0800</date>
            <delta_ts>2021-02-23 08:44:12 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-222100-20210223133637.patch</filename>
            <type>text/plain</type>
            <size>10762</size>
            <attacher>zsun</attacher>
            
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          </attachment>
          <attachment
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              ispatch="1"
              isprivate="0"
          >
            <attachid>421316</attachid>
            <date>2021-02-23 08:44:17 -0800</date>
            <delta_ts>2021-03-03 12:27:20 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-222100-20210223164416.patch</filename>
            <type>text/plain</type>
            <size>10689</size>
            <attacher>zsun</attacher>
            
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          </attachment>
          <attachment
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              ispatch="1"
              isprivate="0"
          >
            <attachid>422134</attachid>
            <date>2021-03-03 12:27:25 -0800</date>
            <delta_ts>2021-03-04 10:23:55 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-222100-20210303202724.patch</filename>
            <type>text/plain</type>
            <size>10988</size>
            <attacher>zsun</attacher>
            
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            <attachid>422253</attachid>
            <date>2021-03-04 10:24:00 -0800</date>
            <delta_ts>2021-04-02 03:10:57 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-222100-20210304182359.patch</filename>
            <type>text/plain</type>
            <size>10908</size>
            <attacher>zsun</attacher>
            
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          </attachment>
          <attachment
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              ispatch="1"
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            <attachid>425002</attachid>
            <date>2021-04-02 03:11:02 -0700</date>
            <delta_ts>2021-04-03 03:25:13 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-222100-20210402111101.patch</filename>
            <type>text/plain</type>
            <size>13645</size>
            <attacher>zsun</attacher>
            
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          </attachment>
          <attachment
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              ispatch="1"
              isprivate="0"
          >
            <attachid>425089</attachid>
            <date>2021-04-03 03:25:19 -0700</date>
            <delta_ts>2021-04-07 08:16:33 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-222100-20210403112518.patch</filename>
            <type>text/plain</type>
            <size>11191</size>
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          </attachment>
          <attachment
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              ispatch="1"
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            <attachid>425395</attachid>
            <date>2021-04-07 08:16:39 -0700</date>
            <delta_ts>2021-04-08 07:44:07 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-222100-20210407161638.patch</filename>
            <type>text/plain</type>
            <size>11199</size>
            <attacher>zsun</attacher>
            
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            <attachid>425506</attachid>
            <date>2021-04-08 07:44:13 -0700</date>
            <delta_ts>2021-04-09 02:18:05 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-222100-20210408154412.patch</filename>
            <type>text/plain</type>
            <size>11153</size>
            <attacher>zsun</attacher>
            
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          </attachment>
      

    </bug>

</bugzilla>