Fire presence first time if presence event unset.

lib/client.js

@@ -1648,6 +1648,7 @@ function createNewRoom(client, roomId) {
         "RoomState.events", "RoomState.members", "RoomState.newMember"
     ]);
     room.currentState.on("RoomState.newMember", function(event, state, member) {
+        member.user = client.getUser(member.userId);
         reEmit(
             client, member,
             [