$ git clone -n https://src.fedoraproject.org/rpms/lua-loadkit.git /var/lib/mock/f45-build-17669-502/root/chroot_tmpdir/scmroot/lua-loadkit
Cloning into '/var/lib/mock/f45-build-17669-502/root/chroot_tmpdir/scmroot/lua-loadkit'...
$ git fetch origin ec249a8930972fe7e8f3bd491dbd180ddfb336ab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lua-loadkit
 * [new ref]         ec249a8930972fe7e8f3bd491dbd180ddfb336ab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec249a8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild