[Dovecot] Random quirks in 1.1-rc11

OK - I wish I had more details but I'm using rc11 for the server and Thunderbird for the client. I'm using Maildir and I'm doing server side folder delivery using Exim. On server side folders I'm seeing the count of messages in a folder showing 22 unread messages but the messages themselves don't show up. I deleted the index files and it still didn't show up. But then I restarted dovecot and now the messages in that folder are there.

I've noticed similar behavior randomly ever since I upgraded to 1.1. The 1.0 never had this problem.

Wish I had more details to post.