[Webkit-unassigned] [Bug 277897] New: Regression: 282030 at main? [ iOS 17 Release ] imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-inline-004.html is a flaky text failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=277897

            Bug ID: 277897
           Summary: Regression: 282030 at main? [ iOS 17 Release ]
                    imported/w3c/web-platform-tests/css/css-anchor-positio
                    n/anchor-position-inline-004.html is a flaky text
                    failure
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Morningstar at apple.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-inline-004.html [ Pass Failure ]
This test is a flaky failure on iOS17 Release, though it's not failing on iPad or Debug. This looks to have started with 282030 at main. 

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-anchor-position%2Fanchor-position-inline-004.html&platform=ios

Diff:
--- /Volumes/Data/worker/Apple-iOS-17-Simulator-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-inline-004-expected.txt
+++ /Volumes/Data/worker/Apple-iOS-17-Simulator-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-inline-004-actual.txt
@@ -15,7 +15,9 @@
 FAIL .target 4 assert_equals:
 <span class="target target1-size" data-offset-x="50" data-offset-y="10" data-expected-width="20" data-expected-height="10"></span>
 width expected 20 but got 0
-PASS .target 5
+FAIL .target 5 assert_equals:
+<span class="target target1-pos" data-offset-x="50" data-offset-y="10" data-expected-width="20" data-expected-height="10"></span>
+width expected 20 but got 210
 FAIL .target 6 assert_equals:
 <span class="target target1-size" data-offset-x="50" data-offset-y="10" data-expected-width="20" data-expected-height="10"></span>
 width expected 20 but got 0

Diff-url:
https://build.webkit.org/results/Apple-iOS-17-Simulator-Release-WK2-Tests/282069%40main%20(4766)/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-inline-004-diff.txt

Test-run:
https://build.webkit.org/results/Apple-iOS-17-Simulator-Release-WK2-Tests/282069%40main%20(4766)/results.html

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