314100 2026-05-05 09:31:09 -0700 REGRESSION(312288@main): [macOS] imported/w3c/web-platform-tests/css/selectors/has-specificity.html is a flaky crash 2026-05-06 10:30:59 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 314205 InRadar P2 Normal --- 1 darbinyan bfulgham bfulgham webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 2207694 0 darbinyan 2026-05-05 09:31:09 -0700 The following test is a flaky crash on macOS. imported/w3c/web-platform-tests/css/selectors/has-specificity.html 2026-05-05 05:09:54.964 com.apple.WebKit.WebContent[3527:197312] CoreText performance note: Client called CTFontCreateWithName() using name "Times New Roman" and got font with PostScript name "TimesNewRomanPSMT". For best performance, only use PostScript names when calling this API. 2026-05-05 05:09:54.964 com.apple.WebKit.WebContent[3527:197312] CoreText performance note: Client called CTFontCreateWithName() using name "Menlo Regular" and got font with PostScript name "Menlo-Regular". For best performance, only use PostScript names when calling this API. 2026-05-05 05:09:54.965 com.apple.WebKit.WebContent[3527:197312] CoreText performance note: Client called CTFontCreateWithName() using name "Arial" and got font with PostScript name "ArialMT". For best performance, only use PostScript names when calling this API. com.apple.WebKit.WebContent.Development terminated (pid 3527) for reason: crash Test results: https://ews-build.webkit.org/#/builders/154/builds/25734 Test history: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fselectors%2Fhas-specificity.html 2207695 1 webkit-bug-importer 2026-05-05 09:31:26 -0700 <rdar://problem/176274161> 2207714 2 ews-feeder 2026-05-05 10:11:35 -0700 Test gardening commit 312624@main (676d042ebd9c): <https://commits.webkit.org/312624@main> Reviewed commits have been landed. Closing PR #64281 and removing active labels. 2207804 3 bfulgham 2026-05-05 15:01:41 -0700 This is actually due to the change adding ::has() support to the CSS JIT. 2207813 4 bfulgham 2026-05-05 15:14:47 -0700 Pull request: https://github.com/WebKit/WebKit/pull/64300 2208181 5 bfulgham 2026-05-06 10:30:59 -0700 We decided to revert the CSS JIT change that created this issue, rather than attempt to fix on-the-fly. This is now a dupe of the revert, which resolves the test failure (Bug 314205). *** This bug has been marked as a duplicate of bug 314205 ***