Before this change a teacher would be able to see users listed if:
* They have an active enrolment and can submit
* They have an an inactive enrolment for a role that can submit
After this change they will additonally be able to see users listed:
* That have an active enrolment and have submitted
* That have an inactive enrolment and have submitted
This means that if an assignment has it's context frozen all users
that have made some form of submission will still be listed.
It will also apply if the submission capability is removed from a
user.
If a user's enrolment is deleted they will not be listed.
The submission and grading counts have also been updated so
they will reflect the new rules.
Neill Magill
bd80f68c11