<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!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>222950</bug_id>
          
          <creation_ts>2021-03-08 15:52:00 -0800</creation_ts>
          <short_desc>&lt;model&gt;&apos;s inner compositing layer is re-created every time it moves</short_desc>
          <delta_ts>2021-03-09 13:58:19 -0800</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>New Bugs</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <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>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Tim Horton">thorton</reporter>
          <assigned_to name="Tim Horton">thorton</assigned_to>
          <cc>dino</cc>
    
    <cc>sam</cc>
    
    <cc>simon.fraser</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1737341</commentid>
    <comment_count>0</comment_count>
    <who name="Tim Horton">thorton</who>
    <bug_when>2021-03-08 15:52:00 -0800</bug_when>
    <thetext>&lt;model&gt;&apos;s inner compositing layer is re-created every time it moves</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1737342</commentid>
    <comment_count>1</comment_count>
      <attachid>422629</attachid>
    <who name="Tim Horton">thorton</who>
    <bug_when>2021-03-08 15:52:25 -0800</bug_when>
    <thetext>Created attachment 422629
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1737461</commentid>
    <comment_count>2</comment_count>
      <attachid>422663</attachid>
    <who name="Tim Horton">thorton</who>
    <bug_when>2021-03-08 21:11:25 -0800</bug_when>
    <thetext>Created attachment 422663
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1737468</commentid>
    <comment_count>3</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2021-03-08 21:41:28 -0800</bug_when>
    <thetext>Committed r274136: &lt;https://commits.webkit.org/r274136&gt;

All reviewed patches have been landed. Closing bug and clearing flags on attachment 422663.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1737470</commentid>
    <comment_count>4</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2021-03-08 21:42:38 -0800</bug_when>
    <thetext>&lt;rdar://problem/75202509&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1737576</commentid>
    <comment_count>5</comment_count>
    <who name="Sam Weinig">sam</who>
    <bug_when>2021-03-09 08:26:57 -0800</bug_when>
    <thetext>I wonder if we could test something like this?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1737684</commentid>
    <comment_count>6</comment_count>
    <who name="Tim Horton">thorton</who>
    <bug_when>2021-03-09 11:41:57 -0800</bug_when>
    <thetext>(In reply to Sam Weinig from comment #5)
&gt; I wonder if we could test something like this?

I wasn&apos;t sure how, without doing something highly overkill like internals API that vended layer pointers or something :)</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1737748</commentid>
    <comment_count>7</comment_count>
    <who name="Sam Weinig">sam</who>
    <bug_when>2021-03-09 13:58:19 -0800</bug_when>
    <thetext>(In reply to Tim Horton from comment #6)
&gt; (In reply to Sam Weinig from comment #5)
&gt; &gt; I wonder if we could test something like this?
&gt; 
&gt; I wasn&apos;t sure how, without doing something highly overkill like internals
&gt; API that vended layer pointers or something :)

Yeah, looking at the underlying issue being pointer comparison, it does seem tricky.</thetext>
  </long_desc>
      
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