"Scores" Page for Course Management is not displayed

[rabeatwork]

Describe the bug

The "Scores" page is not displayed. The console throws an error (see below). I should be able to see the Scores page.

To Reproduce

1. Log in as instructor
2. Go to 'Course Management'
3. Click on 'Scores'
4. See error (don't see scores)

The error occurs when the course contains team participations, and when these team participations do not contain any team members.

Expected behavior

I should be able to see the Scores page.

Screenshots

Which version of Artemis are you seeing the problem on?

7.9.1

What browsers are you seeing the problem on?

Chrome

Additional context

No response

Relevant log output

ERROR TypeError: n is not iterable
    at r.mapStudentIdToStudentStatistics (course-scores.component.ts:486:48)
    at r.calculateStudentLevelStatistics (course-scores.component.ts:410:34)
    at Object.next (course-scores.component.ts:284:18)

[Santia-go]

@krusche Is there any update about it? I would like to publish the grades this week before everyone (including professors)goes on vacation.

[krusche]

we will fix it asap

[krusche]

This only occurs if there is an "empty" team without students which has previously started the exercise and created a participation. As a temporary workaround, you can delete the team

[MarkusPaulsen]

Please consider significantly reducing the response size for https://artemis.tum.de/api/courses/<course-number>/participations, either in this pull request or in a follow-up one, as some courses currently return payloads exceeding 70 MB.