[Webkit-unassigned] [Bug 109680] New: Element that previously had column-span:all breaks multicol layout

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=109680

           Summary: Element that previously had column-span:all breaks
                    multicol layout
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P3
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mstensho at opera.com


Created an attachment (id=188053)
 --> (https://bugs.webkit.org/attachment.cgi?id=188053&action=review)
Testcase

If the "column-span" property is changed from "all" to "none" on an element that lives somewhere in the middle of a multicol container, the layout isn't updated correctly.

The anonymous wrapper element created when column spanners are present should probably be removed when the spanner goes away, and, more importantly, the two multicol containers created - one before the spanner and one after - should be merged into one.

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