[Webkit-unassigned] [Bug 222720] REGRESSION(r272900): Nullptr crash in ComposedTreeIterator::traverseNextInShadowTree() via ShadowRoot::hostChildElementDidChange

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=222720

--- Comment #13 from Ryosuke Niwa <rniwa at webkit.org> ---
Comment on attachment 422355
  --> https://bugs.webkit.org/attachment.cgi?id=422355
Patch for landing

View in context: https://bugs.webkit.org/attachment.cgi?id=422355&action=review

>> Source/WebCore/dom/ComposedTreeIterator.cpp:165
>> +            if (auto assignedNode = assignedNodes->at(0)) {
> 
> Is this correct behavior? Do we want the first non-null assigned node if the first node is null, for example?

Hm... that is a good point.

Antti, what do you think?

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