[Dovecot] subscriptions list destroyed

[kalle-e at medelklassen.com]

What could be the reason that the subscribed folders list becomes
messed up? 

If i do this:

$ rm ~/.maildir/.subscriptions
$ evolution
[subscribe to everything, exit program]
$ cat ~/.maildir/.subscriptions
debian
sers
va
 
$

(or some other random text which seems to come from parts of the
folder list)

This makes Mozilla Mail go crazy. Evolution and Gnus work OK since
they seem to have their own list, but switching back and forth between
Evolution and Gnus makes Evolution forget the list.

I don't think I had this problem before. I used mbox then.