Allow Group Reviewers to Assign Non-Member Groups in Merge Requests
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**Summary**
Enable users to assign group reviewers to merge requests, even if they are not members of those groups.
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Currently, GitLab restricts the ability to assign group reviewers on a Merge Request to groups of which the user is a member. This limitation prevents users from easily requesting reviews from specialized teams or groups outside of their immediate team.
Request:
- Removing the membership restriction for assigning group reviewers.
- Potentially implementing a permission system to control who can assign reviewers from external groups.
issue