Owner cannot remove members of a project if they are members of a group
### Summary
When I create new repository all members of my group are automatically added as members of this repo. When I want to remove someone from the repo, I don't see a button "remove from repository". It only happens to users that were automatically added. If I added someone myself, I can remove them without any problems.
### Steps to reproduce
1. Create a new repository in a group as an owner. (All group members will be added automatically as members of this repo)
2. Try to delete one of the members at https://gitlab.com/<name_of_the_group>/<name_of_the_project>/settings/members
### What is the current *bug* behavior?
Cannot delete any member. The bin icon is not visible.
### What is the expected *correct* behavior?
Bin icon near every member.
### Output of checks
This bug happens on GitLab.com
~~My workaround~~
~~Change permissions of a user you want to remove. Then the bin icon will appear and you will be able to remove them from a repository.~~
After refreshing a page, I see that members of a group are still members of a repo, so this doesn't work either.
issue