$ git clone -n https://src.fedoraproject.org/rpms/ddccontrol-db.git /var/lib/mock/f45-build-7438-364/root/chroot_tmpdir/scmroot/ddccontrol-db
Cloning into '/var/lib/mock/f45-build-7438-364/root/chroot_tmpdir/scmroot/ddccontrol-db'...
$ git fetch origin fce9a2d372e0c2b7fde7b76d0e1f14102d0c27d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ddccontrol-db
 * [new ref]         fce9a2d372e0c2b7fde7b76d0e1f14102d0c27d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fce9a2d New version