editing/selection/navigation-clears-editor-state.html Is a flaky crash on History: https://results.webkit.org/?suite=layout-tests&test=editing%2Fselection%2Fnavigation-clears-editor-state.html According to the history, it looks like the flaky crash started showing up at around r282867. Stderr: com.apple.WebKit.WebContent.Development terminated (pid 62816) because the process crashed LEAK: 1 WebPageProxy
<rdar://problem/83465769>
Created attachment 439093 [details] Crash log
Result page: https://build.webkit.org/results/Apple-BigSur-Debug-WK2-Tests/r282951%20(3889)/results.html Marked test expectations: https://trac.webkit.org/changeset/283008/webkit
Removed test expectations: https://trac.webkit.org/changeset/283379/webkit