Searching reviewers for an approval/CODEOWNERS should only be scoped to include user of that rule

Problem

When searching for users from the a specific approval rule, it is searching across more users than the scoped list of users for that specific rule.

In the image below from https://gitlab.com/gitlab-com/www-gitlab-com/-/merge_requests/142767, @mvanremmerden is reviewer for an optional CODEOWNER rule, he should not appear in that dropdown.

CleanShot_2026-03-05_at_21.47.29

Expected behavior

Search is scoped to only those users who are eligible reviewers for that rule

Edited by 🤖 GitLab Bot 🤖