[Webkit-unassigned] [Bug 192320] REGRESSION (r238090): position:fixed sidebar on https://www.w3.org/TR/SVG2/coords.html does not stay fixed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=192320

--- Comment #2 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
The page is using main thread scrolling (because of fixed backgrounds), and the compositing update pass is failing to update the positions of fixed elements.

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