$ git clone -n https://src.fedoraproject.org/rpms/lua-compat53.git /var/lib/mock/f45-build-17657-502/root/chroot_tmpdir/scmroot/lua-compat53
Cloning into '/var/lib/mock/f45-build-17657-502/root/chroot_tmpdir/scmroot/lua-compat53'...
$ git fetch origin e8a74089a216aab79953895da77728351407c914:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lua-compat53
 * [new ref]         e8a74089a216aab79953895da77728351407c914 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8a7408 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild