typing notification bug
Gajim doesn't ignore messages of types it doesn't know. As a result it shows a lot of empty messages when it receive these notifications. XMPP spec says it should ignore messages of unknown types.
It also says that typing notification shouldn't be sent if the client in front doesn't ask for it, but for example [Kopete http://kopete.kde.org] in its current version always send those notifications. (fixed in kopete cvs)
Way to reproduce it : talk with someone using kopete