[Webkit-unassigned] [Bug 173528] Class matching fails after moving an element from a quirks-mode document to a standard-mode document

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=173528

--- Comment #1 from Kent Tamura <tkent at chromium.org> ---
The root issue is a single ShareableElementData is unexpectedly shared in a quirks-mode document and a standard-mode document.

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