1. Create a course with normal settings
2. Create a user and give them a role of "student" in the course using the "Other users" page. Don't enrol them.
3. Log in as that user and try to enter the course.
Result: "This course is not enrollable at the moment."
Expected: If I have a role already I should not need to enrol in the course, I should just get in (and if self-enrolment is allowed, I would see the link for that in the course admin menu).