[Webkit-unassigned] [Bug 137330] New: RenderMathMLUnderOver adds spacing to the child operator indefinitely when resizing the window

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=137330

           Summary: RenderMathMLUnderOver adds spacing to the child
                    operator indefinitely when resizing the window
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: MathML
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: sabouhallawa at apple.com


1. Launch webkit with the following 

<div>
    <math xmlns='http://www.w3.org/1998/Math/MathML' display='block'>
        <mi>S</mi>
        <mover>
            <mo>&#x02192;</mo>
            <mrow>
                <mi>K</mi>
                <mn>1</mn>
            </mrow>
        </mover>
        <mi>R</mi>
    </math>
</div>

2. Resize the window from the left side multiple times increasing and decreasing the width of the window

Result: the arrow operator of the mover construct keeps moving to the left.  At the beginning the arrow operator overlaps the text before the mover construct.  At the end the arrow might disappear at the end until then page is reloaded.

<rdar://problem/18432214>

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