$ git clone -n https://src.fedoraproject.org/rpms/xmoto.git /var/lib/mock/f45-build-38969-731/root/chroot_tmpdir/scmroot/xmoto
Cloning into '/var/lib/mock/f45-build-38969-731/root/chroot_tmpdir/scmroot/xmoto'...
$ git fetch origin 3a6d1a256c417f8f65391d7f61d4f87c76a7b4ac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xmoto
 * [new ref]         3a6d1a256c417f8f65391d7f61d4f87c76a7b4ac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a6d1a2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild