SalutPresenceCache: remember a CapabilityInfo struct for those without caps
SalutPresenceCache: remember a CapabilityInfo struct for those without caps

freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut