Seen database issue

[Shelley Waltz]

I am migrating my users from cyrus-imapd-2.2.3-4 to cyrus-imapd-2.3.7-2

Moving the /var/spool/imap directories, and /var/lib/user/{}.seen
files to the new server and reconstructing works fine except that all the
mail shows up as "not read" on the new sever.

The username.seen on both servers is skiplist.  What do I need to do to
have the seen preserved in the migration?

No issues were mentioned in the upgrade documentation regarding a migration
from 2.2 to 2.3 and skiplist.  Any help is appreciated.
thanks S