In answer to w00ts question, the channel might not exist, because of the following...

In answer to w00ts question, the channel might not exist, because of the following situation
user A exists on both servers.
When servers link, user A is collided, but one or both servers still get the FJOIN:  FJOIN #chan 1234 :@,A
of course, A is gone, the only join to the channel fails, so the channel actually doesnt exist at the end of the loop, so chan == NULL :)

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@5790 e03df62e-2008-0410-955e-edbf42e46eb7