defaultUserScope is not respected

[christaikobo]

Description

  sources:
    - name: "Default"
      path: "/source"
      config:
        defaultUserScope: "/users"
        defaultEnabled: true
        createUserDir: true

With the above config, when creating user like this:

I got scope like this:

Expected behaviour
User test should have scope of /users/test

What is happening instead?
User test has scope of /test

How to reproduce?
Use above config, create new user without specifying scope.