Lately (now with trunk build 2003022516) I've started seeing the old problem when IMAP server (UW-IMAP with two Mozilla's checking mail) disconnects right when the message is being loaded and the message is not loaded, error not shown and the empty message is cached. Has something recently changed in the code making this happen easily? I've already seen it few times tonight.
I suspect Darin's change to fix the imap hang problem has introduced this again. I think we're not running queued urls correctly in some cases too, which is probably related. I don't really have time to look at this, unfortunately.
Ere, are you still seeing this with trunk 1.5 builds?
I haven't seen it for a little while but then again I've lately taken extra care not to have multiple clients running at the same time. I'll just let Mozilla run at home and work simultaneously and see if the problem persists. I don't think the problem has gone anywhere unless something has changed (at least there's no progress in bug 200181). I don't know, maybe this should be a dupe of bug 200181 anyway.
Still happens with 2003061108.
The fix will be in bug 200181, marking as a duplicate. *** This bug has been marked as a duplicate of 200181 ***