CommitsBetween: make sure we walk computed revs with unfiltered repo
As revs are computed using unfiltered repo, so later while converting them to GitCommit objects it should use unfiltered repo.
This instance will be upgraded to Heptapod 1.3.1 (GitLab 16.9.3) on 2023-03-28 at 17:00 UTC+1
As revs are computed using unfiltered repo, so later while converting them to GitCommit objects it should use unfiltered repo.