[Webkit-unassigned] [Bug 246132] New: [Live Range Selection] Debug assertion failure in FrameSelection::setSelectionWithoutUpdatingAppearance

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=246132

            Bug ID: 246132
           Summary: [Live Range Selection] Debug assertion failure in
                    FrameSelection::setSelectionWithoutUpdatingAppearance
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML Editing
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rniwa at webkit.org
                CC: wenson_hsieh at apple.com

When live range selection is enabled, we hit the following assertion in 5 editing tests:

SHOULD NEVER BE REACHED
editing/FrameSelection.cpp(374) : bool WebCore::FrameSelection::setSelectionWithoutUpdatingAppearance(const WebCore::VisibleSelection &, OptionSet<WebCore::FrameSelection::SetSelectionOption>, WebCore::FrameSelection::CursorAlignOnScroll, WebCore::TextGranularity)
1   0x7b4271bf9 WTFCrash
2   0x7c98ba52b WTFCrashWithInfo(int, char const*, char const*, int)
3   0x7cd1c7f31 WebCore::FrameSelection::setSelectionWithoutUpdatingAppearance(WebCore::VisibleSelection const&, WTF::OptionSet<WebCore::FrameSelection::SetSelectionOption>, WebCore::FrameSelection::CursorAlignOnScroll, WebCore::TextGranularity)

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