$ git clone -n https://src.fedoraproject.org/rpms/python-multi_key_dict.git /var/lib/mock/f45-build-31616-654/root/chroot_tmpdir/scmroot/python-multi_key_dict
Cloning into '/var/lib/mock/f45-build-31616-654/root/chroot_tmpdir/scmroot/python-multi_key_dict'...
$ git fetch origin b3d97a13c2baacc734255d451cce09d3b86a91bf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-multi_key_dict
 * [new ref]         b3d97a13c2baacc734255d451cce09d3b86a91bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3d97a1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild