[Webkit-unassigned] [Bug 12716] New: Assertion failure involving printing and display:run-in and dt/dl elements; overlapping text on Release build

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=12716

           Summary: Assertion failure involving printing and display:run-in
                    and dt/dl elements; overlapping text on Release build
           Product: WebKit
           Version: 420+ (nightly)
          Platform: Macintosh
        OS/Version: Mac OS X 10.4
            Status: NEW
          Keywords: InRadar
          Severity: Normal
          Priority: P2
         Component: Printing
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: sullivan at apple.com


This is in Radar as <rdar://problem/4988325>

To reproduce:

1. Load the attached example page, which is a reduced version of the one in
radar 4960095/bugzilla 12449
2. Command-P to bring up Print dialog
3. Click Preview button

Usually the assertion failure happens here. But sometimes, I have to repeat
steps 2 and 3. I've never had to repeat them more than once to hit the
assertion failure, in many attempts, so I'm marking this repro always.

On a release build the printed page shows overlapping, doubly-drawn text, and
the web page redraws to show that same bad appearance. See the attached
screenshot. There don't seem to be any other symptoms on a release build --
reloading takes the page back to normal, and subsequent pages aren't messed up.


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