A couple of weeks ago I asked a question in Physics chat (the only time I ever went there) and was referred to the Pod Bay chat. I spoke briefly to someone in there and now when I'm in English Language & Usage chat I am constantly getting notifications of events in Pod Bay that are soon to occur.
I don't want to get these notifications. I did not register for anything. How do I turn them off?
I looked at How do I stop getting notifications for a chat event?, which tells you how to stop getting notifications you registered for. Again, I registered for nothing. So this does not apply.
The Pod Bay chat is not favorited by me, nor have I, to my knowledge, stated a preference for it in any other way. See below:
Now it's also happening for Physics, the other chat I visited once: