$permissionLevels{become_student} = 'ta';
This is something that I thought would be a desirable default behaviour. I'm curious if there is a reason why it is not. If not, then should the default be changed in the next version?
By default TAs are not allowed to act as another user. This can be changed by adding the following line to your localOverrides.conf file (or course.conf if you only want to change it for a single course):