How do I promote all users to trust level 1?

Hi,
I used users.update_all(trust_level: 2) on some trust level 1 users. The users are now trust level 2:


But don’t belong to the related group:

Will they be put inside this group automatically later? Is there some sidekiq task to be executed?
What if we decrease a user trust level from command line (lvl 4 → lvl 2)?