Comment 6 for bug 867866

Looks like the remerge of the multisource replication code went wonky somewhere and the primary key on the sys_replication.queue table is not correct. Missing the master_id column. I'm not sure how this code was remerged so there may be other hidden issues like this, but fixing the PK seems to be the fix for this particular bug.

I think there is an issue with the timing of the test case, though. Told Patrick about it and he's got a fix for that.