submailbox problem after migrating from cyrus version 2.2.8 to 2.2.12

[Davis]

Hello,

   I have following problem, I recently did migrating from one machine 
to another and installed version 2.2.12 on new machine, to do migration, 
I took following steps, made the same mailboxes scheme (including 
subfolders) on new machine (just empty mailboxes) with cyradm, then 
copied mail data from /var/spool/mail to new machine and tried to run 
reconstruct -r user.davis, but it did reconstruct only INBOX, not any of 
subfolders and with old server when I try to telnet to it, isuing 
command 'LSUB "INBOX" "*"' I get information about subfolders, but on 
the new one I get just OK message that says there is no subfolders.

   The strangest thing is that output with cyradm, to list all 
mailboxes, is the same on both machines (also user mailbox has 
\HasChildren), also when I dump mailboxes.db, they are the same on both 
machines.

-DAvis