This test was added as part of https://trac.webkit.org/changeset/232005/webkit but it didn't have an expected results file.
Created attachment 340879 [details] Patch
Comment on attachment 340879 [details] Patch Clearing flags on attachment: 340879 Committed r232027: <https://trac.webkit.org/changeset/232027>
All reviewed patches have been landed. Closing bug.
<rdar://problem/40430180>