[Dovecot] Impossible to share INBOX with other users

[Daniel Stoye]

Hello,

i am currently testing Dovecot 2.0 rc1 with Maildir format,
and it seems impossible to share the Inbox of one user with another user.

user1 shares Inbox with user2

user2 makes List command:
1 list "" "*"
* LIST (\HasNoChildren) "/" "Sent"
* LIST (\HasNoChildren) "/" "AutoCleanSpam"
* LIST (\HasNoChildren) "/" "Trash"
* LIST (\HasNoChildren) "/" "Drafts"
* LIST (\HasNoChildren) "/" "INBOX"
* LIST (\Noselect \HasNoChildren) "/" "FremdeOrdner"
1 OK List completed.

INBOX of user1 which was shared is missing!

user1 shares Trash/test with user2:

user2 makes List command:

1 list "" "*"
* LIST (\HasNoChildren) "/" "Sent"
* LIST (\HasNoChildren) "/" "AutoCleanSpam"
* LIST (\HasNoChildren) "/" "Trash"
* LIST (\HasNoChildren) "/" "Drafts"
* LIST (\HasNoChildren) "/" "INBOX"
* LIST (\Noselect \HasChildren) "/" "FremdeOrdner"
* LIST (\Noselect \HasChildren) "/" "FremdeOrdner/user1"
* LIST (\HasNoChildren) "/" "FremdeOrdner/user1/Trash/test"
1 OK List completed.

Trash/test is there, INBOX of user1 is still missing!

Filesystem structure is as folled:

~user1/maildir/dovecot-acl:
user=user2 ilrws
~user1/maildir/dovecot-acl-list:
1278592283 Trash/test

Now there is the following problem:
~user1/maildir/dovecot-acl-list BEFORE list command of user2:
1278592732 INBOX
1278592283 Trash/test
~user1/maildir/dovecot-acl-list AFTER list command of user2:
1278592283 Trash/test

It seems, that after user2 makes the list command, the acl for INBOX is
gone missing.

Regards, Daniel Stoye