Group from CodeOwners should not be added again to reviewer in PR

[hfrahmann]

Feature Description

I have groups in the CODEOWNERS file and they are added in PR as reviewers.
When one member of the group reviews the PR, the group is replaced by the member.

The problem is now, that after a change in the PR the group is added again as a reviewer.
We don't want/need this behaviour.

If this is intended, can this be an option/setting in gitea?

Screenshots