Matching: Compute Conflicts on Desk Reject/Withdraw Reversion

[haroldrubio]

When conflicts are computed, they are only computed against active submissions. But it could be the case that:

1. Conflicts are computed for active submissions, conflicts are not computed for desk-rejected/withdrawn submissions
2. Desk-rejects/withdrawn submissions are reverted and now need assignments, since the matcher only assigns to active submissions
3. Conflict edges don't exist so the UI does not render a red box for conflicts in the edge browser