[Webkit-unassigned] [Bug 77653] New: [Qt] Fix an assertion for newer Qt5

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=77653

           Summary: [Qt] Fix an assertion for newer Qt5
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: Qt, QtTriaged
          Severity: Blocker
          Priority: P1
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ossy at webkit.org


Today I tried the latest Qt5 hash for the weekly update, but unfortunately 
there is a serious assertion should be fixed before updating. (WK1 and WK2 too)
Zillion tests crash, but the crash log is same for all crash.

crash log on WK2: ( Unfortunately it is empty on WK1 :-/ )
ASSERTION FAILED: m_transparencyCount > 0
/home/oszi/WebKit/Source/WebCore/platform/graphics/GraphicsContext.cpp(346) : void WebCore::GraphicsContext::endTransparencyLayer()

Unfortunately the bug isn't reproducible easily, becuase crashing tests pass with --run-singly
But you can reproduce them easily and deterministically with:
$ Tools/Scripts/run-webkit-tests --debug svg/clip-path

Should we postpone the update, or should we find a previous, but working Qt5 hash of this week?

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