$ git clone -n https://src.fedoraproject.org/rpms/perl-Digest-SHA.git /var/lib/mock/f41-build-815652-149658/root/chroot_tmpdir/scmroot/perl-Digest-SHA
Cloning into '/var/lib/mock/f41-build-815652-149658/root/chroot_tmpdir/scmroot/perl-Digest-SHA'...
$ git fetch origin f8b8baef669add04ed4e5748cc008a686dd0066b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Digest-SHA
 * [new ref]         f8b8baef669add04ed4e5748cc008a686dd0066b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f8b8bae Increase release to favour standalone package