Include all group owners in "You’ve been accepted into @group-x" message

When a group owner approves a certain user, they are message “You’ve been accepted into @group-x”. However this message is only in the name of the group owner who approved it.

The reason for this inclusion is because after getting accepted users may have additional questions and it would be good if other group owners could chip in.

Ideally either:

  • (a) all group owners would get included in that new message
  • (b) it would not be a new message but instead a continuation of the thread “Membership Request for @group-x” (where all group owners are already included)

I believe (b) would be the best as it allows us to more easily follow the whole group-joining process in one single thread, while including everyone.