Refresh does not refresh selected view.
The refresh button refreshes the clients dataset but not the copy used
in the view.
Reproduced by viewing an assignment as a student, changing the
assignment as an admin and refreshing as a student.
Note: If the assignment can’t be changed in the first place this might not be an issue at all.
(from redmine: issue id 2446, created on 2016-11-27 by erik.geiser)