[Webkit-unassigned] [Bug 190401] New: Assertion failure in NSComparisonResult UIContentSizeCategoryCompareToCategory()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=190401

            Bug ID: 190401
           Summary: Assertion failure in NSComparisonResult
                    UIContentSizeCategoryCompareToCategory()
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: realdawei at apple.com
                CC: lforschler at apple.com

API test TestWebKitAPI.EditorStateTests.TypingAttributesTextAlignmentAbsoluteAlignmentOptions is crashing on iOS 12 [Debug]

It crashes ~50 percent of the time.

Sample output:
https://build.webkit.org/builders/Apple%20iOS%2012%20Simulator%20Debug%20WK2%20%28Tests%29/builds/221/steps/run-api-tests/logs/stdio

    TestWebKitAPI.EditorStateTests.TypingAttributesTextAlignmentAbsoluteAlignmentOptions
        2018-10-08 10:01:47.818 TestWebKitAPI[14259:247411] *** Assertion failure in NSComparisonResult UIContentSizeCategoryCompareToCategory(__strong UIContentSizeCategory _Nonnull, __strong UIContentSizeCategory _Nonnull)(), /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKitCore_Sim/UIKit-3698.84.15/UIContentSizeCategory.m:87
        Child process terminated with signal 11: Segmentation fault

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