I’ve connected my AD server to Gitlab. User accounts are created on first logon.
For one user (let’s call him “foo”) an account called “foo1” is created. When I visit /admin/users/foo1 I see the user, but when I visit /admin/users/foo, I get a 404.
When I try to manually edit the username from foo1 to foo, Gitlab shows me an error: “Username has already been taken”.
When I run curl --silent --header "Private-Token: <removed>" 'https://<host>/api/v4/users?username=foo' ; echo, I get an empty array as result, but when I run curl --silent --header "Private-Token: <removed>" 'https://<host>/api/v4/users?username=foo1' ; echo, I can see the user.
So why does Gitlab think the user foo exists?