CommitService: implement FindCommits (partially for now)
For now, this doesn't support all lookups, but we plan to complete it by HGitaly1 milestone.
This instance will be upgraded to Heptapod 0.21.0rc2 on 2021-04-16 at 14:00 UTC+2 (a few minutes of down time)
For now, this doesn't support all lookups, but we plan to complete it by HGitaly1 milestone.