Seen in fast/repaint/focus-ring-repaint.html We may fail to paint newly added outlines correctly. This is a legacy line layout bug exposed by IFC integration.
Created attachment 412073 [details] patch
Committed r268862: <https://trac.webkit.org/changeset/268862> All reviewed patches have been landed. Closing bug and clearing flags on attachment 412073 [details].
<rdar://problem/70571781>