[Webkit-unassigned] [Bug 191465] New: [css-grid] Dynamically setting "position: absolute" in a grid item doesn't trigger a relayout of that element

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=191465

            Bug ID: 191465
           Summary: [css-grid] Dynamically setting "position: absolute" in
                    a grid item doesn't trigger a relayout of that element
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jfernandez at igalia.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Created attachment 354329

  --> https://bugs.webkit.org/attachment.cgi?id=354329&action=review

Test case to reproduce the issue

Check the attached example, you shouldn't see red as the item gets absolute positioned and should take the whole size of the grid.

Note that in the example, when "item" is marked as absolutely positioned, its containing block is "wrapper" and not the grid container.
For some reason we're not triggering a new layout of the "item" in this situation.

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