$ git clone -n https://src.fedoraproject.org/rpms/python-pysmart.git /var/lib/mock/f45-build-32399-659/root/chroot_tmpdir/scmroot/python-pysmart
Cloning into '/var/lib/mock/f45-build-32399-659/root/chroot_tmpdir/scmroot/python-pysmart'...
$ git fetch origin 56b39878d5db3b4a654baa6ef055db64b9dcae19:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pysmart
 * [new ref]         56b39878d5db3b4a654baa6ef055db64b9dcae19 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 56b3987 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild