Only fire user_joined_room on the distributor if the user has actually joined the room
Only fire user_joined_room on the distributor if the user has actually joined the room

TribeMedia/synapse,TribeMedia/synapse,TribeMedia/synapse,matrix-org/synapse,matrix-org/synapse,matrix-org/synapse,matrix-org/synapse,matrix-org/synapse,TribeMedia/synapse,TribeMedia/synapse,matrix-org/synapse