fix https://github.com/sagemathinc/smc/issues/1026 -- "viewing a chatroom (not side chat) seems to often result in a notification claiming that you changed it even though you didn't"; this was just a weird bug introduced when simon merged something, I guess. The code is nonsense.
fix https://github.com/sagemathinc/smc/issues/1026 -- "viewing a chatroom (not side chat) seems to often result in a notification claiming that you changed it even though you didn't"; this was just a weird bug introduced when simon merged something, I guess. The code is nonsense.

tscholl2/smc,DrXyzzy/smc,tscholl2/smc,sagemathinc/smc,sagemathinc/smc,DrXyzzy/smc,sagemathinc/smc,DrXyzzy/smc,DrXyzzy/smc,tscholl2/smc,tscholl2/smc,tscholl2/smc,sagemathinc/smc