disconnect_on_vanished_mailbox

[Chris Conn]

Hello,

I am looking at this option for 2.4.5;

disconnect_on_vanished_mailbox: 1

If enabled, IMAP/POP3/NNTP clients will be disconnected by the server if 
the currently selected mailbox is (re)moved by another session. 
Otherwise, the missing mailbox is treated as empty while in use by the 
client.

Some techs have the nasty habit of renaming mailboxes as some sort of 
means to remove POP3 locks on a dead customer session.  This renaming 
atrocity seems to work on pop3 clients, however my tests show that if we 
rename a mailbox on a active IMAP connection, the rename works, however 
the original mailbox is only deleted once the socket times out or the 
client closes his client.  I was hoping this option would disconnect the 
IMAP client, as I added a pop3test to try and remove the IMAP mailbox 
lock on the old mailbox, but to no avail.  The end result is a duplicate 
account, mail is moved to the new mailbox and we have to manually move 
back the mailbox name.

Is there any way I can cheat on a mailbox lock to allow a rename when an 
active IMAP connection is on that locked mailbox?

Chris