Brings a new message into every list that shows its dialog, in place: the payload carries the message and its dialog (with this member's unread count), so only a dialog new to this browser needs fetching, for its participants.
Brings a new message into every list that shows its dialog, in place: the payload carries the message and its dialog (with this member's unread count), so only a dialog new to this browser needs fetching, for its participants.