ASSERT_NOT_REACHED() in EventRegionContext::popClip()
Created attachment 403411 [details] Patch
Comment on attachment 403411 [details] Patch Patch looks good.
Committed r263980: <https://trac.webkit.org/changeset/263980> All reviewed patches have been landed. Closing bug and clearing flags on attachment 403411 [details].
<rdar://problem/65144057>