We're forgetting to shrink-wrap the RuleFeatureSet in DocumentRuleSets.
Created attachment 285528 [details] Patch
Comment on attachment 285528 [details] Patch Clearing flags on attachment: 285528 Committed r204241: <http://trac.webkit.org/changeset/204241>
All reviewed patches have been landed. Closing bug.