Auto-migrate leaderboard submissions

[ihsaan-ullah]

@ mention of reviewers

@Didayolo

A brief description of the purpose of the changes contained in this PR.

Previously, all submissions of a phase were migrated to a new phase in the auto-migration.

NOW, only leaderboard submissions will be migrated

Issues this PR resolves

• Problems with re-running submissions #1182 -> Auto-migration

Test

• Test it on test server (not tested locally)

Checklist

• Code review by me
• Hand tested by me
• I'm proud of my work
• Code review by reviewer
• Hand tested by reviewer
• CircleCi tests are passing
• Ready to merge

[Didayolo]

I think it makes sense that the tests are failing. I guess the tests need to be adapted to match this change.

[Didayolo]

@ihsaan-ullah

I encountered a problem while testing this on the test server.

Here is the test competition:
https://codabench-test.lri.fr/competitions/143

Here is what I did:

• Make several submissions in development phase from 2 users ("pavao" and "testos")
• Have only 2 submissions on the leaderboard (1 for each user)
• Select "auto-migration" option, and wait for the final phase to start

When the final phase started, the two submissions got run, so the change worked (only leaderboard submissions got run).

In the logs, I can find the scores and everything, so the submissions worked well:

However, on the final phase leaderboard, the scores are N/A and the detailed results lead to 404 error:

[ihsaan-ullah]

I think this problem is not related to the change I made because we have never tested auto migration. Or maybe you have tested auto migration before?

I am not sure but I think someone has reported this before

[Didayolo]

OK, I had the impression it worked before but I'm not sure. I'll open another issue about it.

[Didayolo]

Indeed, it's here:

• Migration with "Force Last" setting gives n/a scores #1174