Limit merge request approvers selection to match repo permissioning

Problem to solve

We have a private group and private group based repo where we open merge requests - when opening a merge request we want to select approvers. however this is made unnecessarily difficult as the select box used to search and find users to approve does not take the permission status of the repo into account and searches all of gitlab.

Target audience

Maintainers & Owners

Further details

Make life easier

Proposal

Restrict selection to the people who have access to the repo already if it is not a public one

What does success look like, and how can we measure that?

Restrict selection to the people who have access to the repo already if it is not a public one