[Webkit-unassigned] [Bug 151916] New: Large operators in displaystyle have wrong height when used as the base of an munderover element

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=151916

            Bug ID: 151916
           Summary: Large operators in displaystyle have wrong height when
                    used as the base of an munderover element
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: MathML
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fred.wang at free.fr
                CC: alex at igalia.com, jfernandez at igalia.com

Created attachment 266716
  --> https://bugs.webkit.org/attachment.cgi?id=266716&action=review
testcase

See the attached testcase. The large operator (black square) has height 0 and so the scripts (red and green bars) are badly placed. I think it's a regression, as it used to work when I implemented largeop support.

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