GabbleMediaSession: fix assertion
GabbleMediaSession: fix assertion


20060904182920-418b8-200d77b56cc7edcf5265e40ac1ebfaab29e3a9a2.gz

Ziemin/telepathy-gabble,mlundblad/telepathy-gabble,community-ssu/telepathy-gabble,community-ssu/telepathy-gabble,mlundblad/telepathy-gabble,jku/telepathy-gabble,Ziemin/telepathy-gabble,Distrotech/telepathy-glib,jku/telepathy-gabble,Distrotech/telepathy-glib,mlundblad/telepathy-gabble,Ziemin/telepathy-gabble,Distrotech/telepathy-glib,Distrotech/telepathy-glib,community-ssu/telepathy-gabble,Ziemin/telepathy-gabble,jku/telepathy-gabble,Distrotech/telepathy-glib,community-ssu/telepathy-gabble