$ git clone -n https://src.fedoraproject.org/rpms/lua-unbound.git /var/lib/mock/f45-build-17707-503/root/chroot_tmpdir/scmroot/lua-unbound
Cloning into '/var/lib/mock/f45-build-17707-503/root/chroot_tmpdir/scmroot/lua-unbound'...
$ git fetch origin 6095a410d62f597a385e170379f003d1658890ad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lua-unbound
 * [new ref]         6095a410d62f597a385e170379f003d1658890ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6095a41 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild