Nested eventSender.keyDown simulates impossible situation. This confuses confuses event processing system and causes crash in [Qt5][WK2] environment. See https://bugs.webkit.org/show_bug.cgi?id=117070 for more details.
Created attachment 203922 [details] Patch
Comment on attachment 203922 [details] Patch Clearing flags on attachment: 203922 Committed r151276: <http://trac.webkit.org/changeset/151276>
All reviewed patches have been landed. Closing bug.