[Webkit-unassigned] [Bug 74002] New: Moving SVG elements on the page doesn't always erase element at the old position

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=74002

           Summary: Moving SVG elements on the page doesn't always erase
                    element at the old position
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
               URL: http://www.mysparebrain.com/svgbug.html
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: SVG
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: tim_webkit at schmerg.com
                CC: zimmermann at kde.org


Created an attachment (id=118215)
 --> (https://bugs.webkit.org/attachment.cgi?id=118215&action=review)
Screenshot illustration of text box incorrectly redrawn

When SVG elements are moved on the page (ie the DOM is manipulated) then the screen redraw logic doesn't always correctly invalidate the old position, so the display is left with portions of the old display.
The test page referenced above shows this with test case number 1 - moving the element down the page leaves artefacts in Safari and Chrome (see also screenshot attached)
Bug also posted to chrome as http://code.google.com/p/chromium/issues/detail?id=98391 but advised to post it here instead.

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