$ git clone -n https://src.fedoraproject.org/rpms/ghc-tasty-hunit.git /var/lib/mock/f39-build-1993115-43416/root/chroot_tmpdir/scmroot/ghc-tasty-hunit
Cloning into '/var/lib/mock/f39-build-1993115-43416/root/chroot_tmpdir/scmroot/ghc-tasty-hunit'...
$ git fetch origin bbd2a723fad74b47f08d7e245d728bc4545def26:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-tasty-hunit
 * [new ref]         bbd2a723fad74b47f08d7e245d728bc4545def26 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bbd2a72 bump release