$ git clone -n https://src.fedoraproject.org/rpms/coreutils.git /var/lib/mock/f41-build-846238-163044/root/chroot_tmpdir/scmroot/coreutils
Cloning into '/var/lib/mock/f41-build-846238-163044/root/chroot_tmpdir/scmroot/coreutils'...
$ git fetch origin 6708c1b886ac1f18bb13d9e795d0ae65dd363756:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coreutils
 * [new ref]         6708c1b886ac1f18bb13d9e795d0ae65dd363756 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6708c1b disable integration with systemd