RESOLVED FIXED 281642
AX: AXIsolatedTree::{collectNodeChangesForSubtree, removeSubtreeFromNodeMap} modify m_nodeMap children IDs when they shouldn't 
https://bugs.webkit.org/show_bug.cgi?id=281642
Summary AX: AXIsolatedTree::{collectNodeChangesForSubtree, removeSubtreeFromNodeMap} ...
Tyler Wilcock
Reported 2024-10-16 19:30:56 PDT
A key component of AXIsolatedTree::updateChildren is comparing the "old" children (what is in the node map) for an object vs. it's new children (the result of AccessibilityObject::children()). This makes AXIsolatedTree::{collectNodeChangesForSubtree, removeSubtreeFromNodeMap}'s behavior of modifying the children IDs for existing entries in the node map problematic, as that can happen before we've had a chance to call `updateChildren`, thus making the old and new children "match" even though they have actually changed since we last ran `updateChildren`. This means we won't create a new node change for this object, resulting in stale properties and missing children.
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Radar WebKit Bug Importer
Comment 1 2024-10-16 19:31:09 PDT
<rdar://problem/138083925>
Tyler Wilcock
Comment 2 2024-10-16 19:42:17 PDT
Pull request: https://github.com/WebKit/WebKit/pull/35339
EWS
Comment 3 2024-10-17 11:36:28 PDT
Committed 285352@main (2206f4c04ec4): <https://commits.webkit.org/285352@main> Reviewed commits have been landed. Closing PR #35339 and removing active labels.
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