Comment 2 for bug 1248491

I think the bug is that the commit hook let you "Fixes:" a ticket that was already closed. If it hadn't allowed that then you wouldn't have put merged the wrong changeset to trunk in the first place.

If you'd accidentally "Fixes:" a ticket that happened to be open then you would have been able to revert the merge in the usual way (and you would have wanted to "Reopen:" the same ticket you closed - which would have matched the topfile - so everything would have worked).