[Standards] NEW: XEP-0209 (Metacontacts)

[Remko Tronçon]

> This one can be strange, if one of the jid goes offline your metacontact
> can change group. That sounds weird.
> What we do in Gajim is at merge time, we also merge groups, and when we
> change the groups of one of the jids, we also change the groups of others.

That could be the recommended way of handling things. However, you
still need to handle the case where contacts are in different groups,
because not all clients necessarily behave the same way.

But with a decent implementation recommendation, you can hope that the
'weird' case shouldn't occur too much.

cheers,
Remko