Strange behaviour for special folders on IMAP

[Toralf Lund <toralf kscanners com>]

After upgrading to current CVS version of Balsa, I started getting strange 
behaviour for IMAP mailboxes again:

INBOX and/or other folders included in a folder set will be listed twice; 
once under the folder set and once in top level list. The "toplevel" 
entries are marked as special mailboxes, the one under the folder set tree 
as normal ones.

In other workds, my mailbox list now looks like this [simplified]:


INBOX
Sent
Drafts
Outbox
Trash
- kscanners.no
     Drafts
     INBOX
     Sent
     Trash

Where "kscanners.no" is "Descriptive Name" of my IMAP folder set. Both 
INBOX entries refer to the same mailbox, and similar for Sent, Drafts and 
Trash (Outbox is on local disk right now.) I run into trouble if I try to 
select both entries for the same mailbox.

This is somewhat similar to a problem I reported on 27/06 (see mailing 
list archives.) That didn't occur every time, though, and it was a lot 
harder to reproduce on the version I built a month or so ago than on some 
earlier releases.

What is wrong?
--
- Toralf