ASSERT crash while running media-source/mediasource-activesourcebuffers.html under Stress GC bot.
Created attachment 296375 [details] Patch
<rdar://problem/28429157>
Comment on attachment 296375 [details] Patch Clearing flags on attachment: 296375 Committed r209469: <http://trac.webkit.org/changeset/209469>
All reviewed patches have been landed. Closing bug.