$ git clone -n https://gitee.com/opencloudos-stream/luajit.git /var/lib/mock/dist-ocs23-build-243780-22892/root/chroot_tmpdir/scmroot/luajit
Cloning into '/var/lib/mock/dist-ocs23-build-243780-22892/root/chroot_tmpdir/scmroot/luajit'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/luajit
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 19a369d Rebuilt for loongarch release