Similar to https://bugs.webkit.org/show_bug.cgi?id=116833, will be fixed when the overflow will be properly set on the region.
Created attachment 231051 [details] Patch
Comment on attachment 231051 [details] Patch r=me
Comment on attachment 231051 [details] Patch Clearing flags on attachment: 231051 Committed r168466: <http://trac.webkit.org/changeset/168466>
All reviewed patches have been landed. Closing bug.