Description of Problem:

The IMAP folder unread mail counts do not always update automatically.

Steps to reproduce the problem:
1. Add imap server with multiple folders, subscribe to folders.
2. Set up automatic send/receive
3. When mail is received into folders on server - check evolution, it
doesn't always update.

Actual Results:
The folder needs to be clicked on for the unread email count to update.

Expected Results:
The unread email count updates automatically all the time

How often does this happen? 
Most of the time - though it does not appear to happen with INBOX.

Additional Information:
I am running CVS as of yesterday evening.