MessageDirector: Fix upstream flow of single-channel add messages.
MessageDirector: Fix upstream flow of single-channel add messages.

pizcogirl/Astron,ketoo/Astron,blindsighttf2/Astron,pizcogirl/Astron,blindsighttf2/Astron,blindsighttf2/Astron,pizcogirl/Astron,ketoo/Astron,blindsighttf2/Astron,ketoo/Astron,ketoo/Astron,pizcogirl/Astron