ICQ/MSN contacts exists up to 20 times in a client

This is a problem I’ve noticed since various month now and since it still seems to be not fixed I assume it’s best to bring this forth.

What happens is that contacts from the ICQ or MSN gateway on a client IM ( in this case Kopete ) if offline are shown up to 20 duplicates in the client. Online they only show once as they should.

Infos:

Openfire 3.6.3

IM Gateway 1.2.4d

Kopete 0.12.7

Not sure what kinds of other informations could be useful. It’s just a bit silly to have like 300 offline contacts in the IM although you have only 15 or so registered contacts.