How to reproduce:
- The submission deadline of the course element "Task" has been reached, submission is thus closed.
- A student hasn't handed in the requested document on time.
- The course owner extends the deadline for submission for this particular student.
-> OK: Deadline is extended.
-> NOK: To reopen the task for the student, the course owner needs to press the button "Reopen submission" in addition to extending the deadline.
Expected behaviour (increased usability):
If a task is closed and the course owner extends the deadline for submission (screenshot 1), the task reopens automatically. It is not required to press the button "Reopen submission" (screenshot 2). The student can now submit the document (screenshot 3).