$ git clone -n https://src.fedoraproject.org/rpms/luajit.git /var/lib/mock/f39-build-2352567-60194/root/chroot_tmpdir/scmroot/luajit
Cloning into '/var/lib/mock/f39-build-2352567-60194/root/chroot_tmpdir/scmroot/luajit'...
$ git fetch origin 9aeb9b6152bd975bcddb8206eedae26501377acf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/luajit
 * [new ref]         9aeb9b6152bd975bcddb8206eedae26501377acf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9aeb9b6 Always run tests