@tgxworld I would like you to fix this, this week if you have some time
A minimal fix here is that if a topic with 1 post is recategorized to a “watching” category notifications should go out.
It is a bit tricky here cause, what happens when you move something to #feature:announcements and then move it out of #feature:announcements ? We need to remove the watching status from all the people to be “correct”