[Webkit-unassigned] [Bug 244846] New: REGRESSION (253727 at main): [ macOS wk2 ] inspector/css/setLayoutContextTypeChangedMode.html is a flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=244846

            Bug ID: 244846
           Summary: REGRESSION (253727 at main): [ macOS wk2 ]
                    inspector/css/setLayoutContextTypeChangedMode.html is
                    a flaky failure
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rackler at apple.com

inspector/css/setLayoutContextTypeChangedMode.html

This test is a flaky text failure on macOS wk2.

HISTORY:
https://results.webkit.org/?suite=layout-tests&test=inspector%2Fcss%2FsetLayoutContextTypeChangedMode.html&platform=mac&flavor=wk2

DIFF:
@@ -37,5 +37,7 @@
 Changing `#normalNonGrid` to `display: grid;`...
 PASS: 3 grid nodes should be instrumented.
 Changing `#normalNonGrid` to `display: block;`...
-PASS: 2 grid nodes should be instrumented.
+FAIL: 2 grid nodes should be instrumented.
+    Expected: 2
+    Actual: 3


Reproduction Steps: 
I can reproduce this on 253727 at main but cannot reproduce it on 253726 at main or earlier.

This issue can be bisected to 253727 at main using the command:

run-webkit-tests -f --clobber-old-results --exit-after-n-failures 1 --debug --force --debug --iterations=50   inspector/css/setLayoutContextTypeChangedMode.html

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