Admin Links to new Group does not respect Default Visibility Settings

Summary

Creating a new group from the Admin dashboard index views, the respective new views don't populate the correct visibility level.

Steps to Reproduce

1. Navigate to the Admin Dashboard (index)
2. Click 'New Group'
3. Change the 'Default Group Visibility' from the Admin Dashboard > Settings > Visibility and Access Controls
4. Click 'New Group' again from the Admin Dashboard

Additional Detail

There is an additional controller to handle Groups created via the Admin Dashboard (Admin::GroupsController) https://gitlab.com/gitlab-org/gitlab-ce/blob/0e9323bd4a61e7125ed90fc60d8072377b6d0c38/app/views/admin/dashboard/index.html.haml#L129

This behaviour is not exhibited via the regular paths to create projects and groups from the normal Dashboard. Here, the visibility settings have influence.