[Webkit-unassigned] [Bug 36418] New: Incorrect painting when switching tabs in github account settings

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=36418

           Summary: Incorrect painting when switching tabs in github
                    account settings
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
        OS/Version: Mac OS X 10.6
            Status: NEW
          Keywords: NeedsReduction
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: webkit at mattlilek.com


Created an attachment (id=51228)
 --> (https://bugs.webkit.org/attachment.cgi?id=51228)
Incorrect rendering

1. Sign into github <https://github.com/login>
2. Click "Account Settings" in the bar along the top right.
3. In "Account Overview", you should default to the first tab ("About
Yourself") which should be tall enough to have a vertical scroll bar. If not,
switch to it or resize the browser window so a vertical scroll bar appears.
4. Scroll down a little.  Hiding the github logo seems to be enough to trigger
this.
5. Switch to another "Account Overview" tab.

When you switch tabs, there's a double paint or something odd where the tab
content appears correctly, but the same content also appears in the upper left
of the browser window.  Forcing a repaint fixes this (see attached screen
shots).  Note that in the screenshots, I used the "SSH Public Keys" tab, though
it isn't limited to that tab.

This happens in both Safari 4.0.5 and r56207 on SnowLeopard.

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