[Dovecot] Strange behavior from shared namespaces and INBOX, probably a bug

[Timo Sirainen]

On Fri, 2011-09-23 at 14:13 +0200, Christoph Bussenius wrote:

> Some folders of user1, including the INBOX, have been shared using these IMAP commands:
> . login user1 XXXXXX
> . setacl INBOX user2 lrwstiekx
> . setacl box-a user2 lrwstiekx
> 
> Now if we use telnet to log in as user2 and select "shared/user1", it will contain the same
> mails as "shared/user1/INBOX".
> 
> The really strange thing is that "SELECT"-ing "shared/user1" succeeds only
> if it is the first command afted logging in.  If it not the first
> command (if e. g. the "LIST" or "SELECT" command has already been used),
> then dovecot will report that the mailbox does not exist.

v2.1 always fails to select "shared/user1". I don't think I'll bother
figuring out why v2.0 doesn't, might not be an easy fix. Much of the
code related to this was rewritten in v2.1.