Hello.
1) create non-public group
2) wait for few user wanting to join it
3) as superuser navigate to "Pending Approval" group's section
Result 1: you can see 100+ users pending (for example).
4) Approve one of them
Result 2: you will redirects to "All user section".
It's not good bacause you need to press on "Pending Approval" again, approve user... press on "Pending Approval" again, approve user. And it's 100+

Expected result: not to redirect to "All users" when user approved or regected.

Didn't tested, but may be it works the same way with friends, pages, etc.

Thanks.