RESOLVED FIXED315108
ASSERTION FAILED: m_renderBlock.ptr() != subtreeScrollbarChangesState->subtreeRoot.ptr() can get triggered after it was added 
https://bugs.webkit.org/show_bug.cgi?id=315108
Summary ASSERTION FAILED: m_renderBlock.ptr() != subtreeScrollbarChangesState->subtre...
Sammy Gill
Reported 2026-05-19 09:53:47 PDT
We added the assertion in 313323@main as a sanity check but it seems like there is content that can trigger it
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Radar WebKit Bug Importer
Comment 1 2026-05-19 09:53:58 PDT
<rdar://problem/177442629>
Sammy Gill
Comment 2 2026-05-19 09:54:52 PDT
Pull request: https://github.com/WebKit/WebKit/pull/65149
EWS
Comment 3 2026-05-19 19:07:49 PDT
Committed 313537@main (537cc2c75cc3): <https://commits.webkit.org/313537@main> Reviewed commits have been landed. Closing PR #65149 and removing active labels.
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