[Webkit-unassigned] [Bug 47175] New: -webkit-transform makes (unrelated) element flicker under certain conditions

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=47175

           Summary: -webkit-transform makes (unrelated) element flicker
                    under certain conditions
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: dieter at komendera.com


Created an attachment (id=69779)
 --> (https://bugs.webkit.org/attachment.cgi?id=69779)
test case

We've seen some strange flickering occur in Safari (and latest WebKit nightly), where on one of our sites the logo started flickering while -webkit-transitions were performing somewhere on the page. The issues doesn't exist with Chrome. We've created a striped down example which reproduces the issue.

In the test case, hover over the boxes labeled "1" and "2" to start transitions. While the transition is performing, the green box at the bottom is flickering.
We've only encountered the issue with a combination of position (absolute), z-index (not equal 0) and the value of the text-indent (in the test case case lower than -1800px or higher than 1877px) of the h1.

Test case is attached.

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