[Webkit-unassigned] [Bug 76256] New: NULL ptr in WebCore::VisibleSelection::firstRange

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=76256

           Summary: NULL ptr in WebCore::VisibleSelection::firstRange
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Windows Vista
            Status: NEW
          Severity: Normal
          Priority: P1
         Component: HTML Editing
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: skylined at chromium.org
                CC: rniwa at webkit.org


Created an attachment (id=122392)
 --> (https://bugs.webkit.org/attachment.cgi?id=122392&action=review)
Repro

Chromium: http://code.google.com/p/chromium/issues/detail?id=110145
Repro:

<script type="text/javascript">
  (_=window.layoutTestController) && _.waitUntilDone();
  window.onload=function(){
    document.execCommand("SelectAll", false);
    document.designMode="on";
    document.execCommand("JustifyCenter");
    _ && _.notifyDone();
  };
  document.addEventListener("DOMNodeRemoved",function(){
    document.execCommand("strikethrough");
    document.execCommand("outdent", false);
  },true);
  document.addEventListener("DOMSubtreeModified",function(){
    document.execCommand("indent", false);
    document.execCommand("StrikeThrough");
    document.execCommand("Undo");
  },true);
</script>

x
<textarea>

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