This hashmap has a raw renderer pointer to a "sibling" renderer.
<rdar://problem/34861590>
Created attachment 323035 [details] Patch
Created attachment 323036 [details] Patch
Comment on attachment 323036 [details] Patch Clearing flags on attachment: 323036 Committed r223003: <http://trac.webkit.org/changeset/223003>
All reviewed patches have been landed. Closing bug.