The analyzer doesn't know about ios-ews yet, but there is already some data from it stored in the database. This causes an exception.
Created attachment 245066 [details] proposed fix
Comment on attachment 245066 [details] proposed fix Clearing flags on attachment: 245066 Committed r178852: <http://trac.webkit.org/changeset/178852>
All reviewed patches have been landed. Closing bug.