Search for users: limit auto suggest results to project members

Hi. It seems like a simple issue yet I haven’t found any information on it:

When searching for Merge Requests and using e.g. the Author or Assignee filter, the resulting auto complete list shows a dozen of (public) users.

Working mostly on private projects with our team where only members from that team will ever contribute to the projects, the auto complete list shows 99% irrelevant users and sometimes it’s very hard to actually find the correct user unless you know the exact username – which defeats the purpose of an auto complete list.

Hence the question: How and where can I limit the results of the auto suggest list to users in a specific group / project / etc.

If this is currently not possible, it should be a feature.

Thanks in advance