Render jobs are queued by the animation, but after a zoom is over, WK thread is not dispatched to perform those jobs.
Created attachment 184054 [details] Patch
Comment on attachment 184054 [details] Patch LGTM.
Comment on attachment 184054 [details] Patch Clearing flags on attachment: 184054 Committed r140477: <http://trac.webkit.org/changeset/140477>
All reviewed patches have been landed. Closing bug.