Teams: Change the deadline for one team is not working

[Santia-go]

Describe the bug

We extended the deadline to one team in a text exercise. However, the student could not see the button to start the exercise.

To Reproduce

1. Create a text exercise for teams
2. In the participation tab, extend the individual deadline to one team
3. As a team member, verify that you cannot see any button to start the exercise or open the text editor (see the screenshot)

Expected behavior

The student member of the team who was extended the deadline should be able to do the exercise.

Screenshots

Which version of Artemis are you seeing the problem on?

7.0.5

What browsers are you seeing the problem on?

Chrome

Additional context

No response

Relevant log output

No response

[EneaGore]

This seems to be a problem for individual excersies too. It only happens if the student/team has not participated before the due date but tries to start the exercise after, then the individual deadline is changed.