Is there any way to keep the "seen" state in a reconstruct?

[Ciprian Marius Vizitiu (GBIF)]

Hi everybody,

On a Cyrus 2.3.7 running on RHEL5 I'm attempting to import an existing IMAP
store by simply copying the old store. Since the user.seen are both
"skiplist" I thought I'd keep them so:

1. Copy the messages (but not cyrus.index/cache/header)
2. update mboxlist (export, edit, import)
3. bring user.seen 
4. reconstruct -r

... still, I lose the "seen" state. Doesn't make any difference whether I
bring back the seen file before or after the reconstruct. Any hints?