The HashSet of all the radio buttons in the group seems to be null. <rdar://problem/27648724>
Created attachment 285389 [details] patch
Comment on attachment 285389 [details] patch Clearing flags on attachment: 285389 Committed r204203: <http://trac.webkit.org/changeset/204203>
All reviewed patches have been landed. Closing bug.
*** Bug 173715 has been marked as a duplicate of this bug. ***