dirstate-v2 testing fix and preparation
This is a split of the most trivial part of !310 (closed) so that we can land them earlier.
All legacy (hg-git based) Projects have been automatically migrated to native with the upgrade of 2025-01-23
This instance will be upgraded to Heptapod 17.7.1 on 2025-02-13 between 18:00 and 19:00 UTC+2
This is a split of the most trivial part of !310 (closed) so that we can land them earlier.