The textModel belongs to the textEditor and should be private to it. Currently, it is created outside textEditor and is sometimes accessed directly by a SourceFrame, JavaScriptSourceFrame or UISourceCodeFrame.
Created attachment 156137 [details] Patch
Comment on attachment 156137 [details] Patch Clearing flags on attachment: 156137 Committed r124584: <http://trac.webkit.org/changeset/124584>
All reviewed patches have been landed. Closing bug.