http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46361
--- Comment #1 from Frédéric Buclin <LpSolit at netscape dot net> 2010-11-15 18:55:05 UTC --- You should never go back after submitting changes to a form. Overriding someone else's changes is expected in that case, especially because you ignored the midair collision message and submitted your own changes anyway.