[Webkit-unassigned] [Bug 33983] New: Setting <Select>.options.length is broken once the inspector has come up

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=33983

           Summary: Setting <Select>.options.length is broken once the
                    inspector has come up
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
               URL: data:text/html;charset=utf-8,<!DOCTYPE%20html><select%
                    20id%3D's'><option>a</option><option>b</option><option
                    >c</option><option>d</option><option>e</option><option
                    >f</option><option>g</option></select>%0A<input%20type
                    %3D'checkbox'%20id%3D'c'></input>%0A<script>function%2
                    0$(i)%20{%20return%20document.getElementById(i);%20}%0
                    A$('c').onchange%20%3D%20function()%20{%20$('s').optio
                    ns.length%20%3D%200;%20}</script>
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jamesr at chromium.org
                CC: jar_webkit at roskind.com


Open the test page and click the checkbox - the select is empty.  Then reload
the page, hit 'Inspect Element' anywhere on the page, and click the checkbox
again.  This time it only removes ~half the <option>s from the <select>,
rounded down.  This appears to be fairly consistent.

I'm guessing that some inspector code is causing the HTMLSelectElement's
listItems to be recalculated in the middle of removing the children - probably
by the inspector touching some field that triggers it.

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