If a user is enrolled in a course and press the Disenroll button, they can then press Cancel, which should result in a message confirming that they cancelled the disenrollment, <ep-disenroll-cancel>.

Instead, it takes the user to a page of the form Special:Disenroll/Example_University/undefined and gives the <ep-disenroll-invalid-name> message.

Seems to be related to the way course titles are derived from the subpage components of the disenroll page title, or something.

Version: master
Severity: trivial