$ git clone -n https://src.fedoraproject.org/rpms/lua-cldr.git /var/lib/mock/f45-build-17611-501/root/chroot_tmpdir/scmroot/lua-cldr
Cloning into '/var/lib/mock/f45-build-17611-501/root/chroot_tmpdir/scmroot/lua-cldr'...
$ git fetch origin 0fe1a1ce88fb6d86e8b49fb0c303b098165d9833:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lua-cldr
 * [new ref]         0fe1a1ce88fb6d86e8b49fb0c303b098165d9833 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0fe1a1c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild