The problem is that the function to check whether two hit test results are equal doesn't check the editable flag.
Created attachment 152214 [details]
Thanks for the patch. If this patch contains new public API please make sure it follows the guidelines for new WebKit2 GTK+ API. See http://trac.webkit.org/wiki/WebKitGTK/AddingNewWebKit2API
Comment on attachment 152214 [details]
Committed r122565: <http://trac.webkit.org/changeset/122565>