[Webkit-unassigned] [Bug 98213] New: Webkit's flexbox impl picks a different flex base size for multicol elements with "align-self:stretch"

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=98213

           Summary: Webkit's flexbox impl picks a different flex base size
                    for multicol elements with "align-self:stretch"
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
               URL: https://people.mozilla.com/~dholbert/tests/flexbox/mul
                    ticol-as-flex-item-1.html
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: dholbert at mozilla.com


STR:
Load testcase, which has two auto-sized multicol elements as flex items in a vertical flex container.
 NOTE: The multicol elements are identical except for in their "align-self" values.
   - the orange one has "align-self: stretch;" (default)
   - the purple one has "align-self: flex-end;"

EXPECTED RESULTS: They should have the same height, since they only differ on "align-self", and the flexbox spec has us resolve the main-size (the height, in this case) before we take "align-self" into consideration.

ACTUAL RESULTS: Their heights are different.

For reference, see this www-style thread where I asked for clarification on this:
  http://lists.w3.org/Archives/Public/www-style/2012Oct/0017.html

Tab and I agree that Webkit renders the purple flex item correctly, but the orange one incorrectly. (it should be as tall as the purple one)

Tested using google chrome dev channel:
Version 23.0.1271.10 dev

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