$ git clone -n https://src.fedoraproject.org/rpms/python-lunr.git /var/lib/mock/f45-build-31449-652/root/chroot_tmpdir/scmroot/python-lunr
Cloning into '/var/lib/mock/f45-build-31449-652/root/chroot_tmpdir/scmroot/python-lunr'...
$ git fetch origin 1908f49e72334e6f1defa1378c3c122659d39f33:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-lunr
 * [new ref]         1908f49e72334e6f1defa1378c3c122659d39f33 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1908f49 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild