link a Kiln commit to a fogbugz ticket

link a Kiln commit to a fogbugz ticket

I have a kiln repo and a FB system. They are integrated, so that when I
commit something, if I include "Case 333" in the commit message, it will
link to Fogbugz ticket 333.
How do I do this from the other side? If I forgot to add the case number,
how do I make the connection from the fogbugz side? I looked at the
fogbugz help, and they only tell you how to do the Case 333 method, which
doesn't help after you've already committed, because you can't edit commit
messages.