$ git clone -n https://gitee.com/opencloudos-stream/libtar.git /var/lib/mock/dist-ocs23-build-239847-21684/root/chroot_tmpdir/scmroot/libtar
Cloning into '/var/lib/mock/dist-ocs23-build-239847-21684/root/chroot_tmpdir/scmroot/libtar'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libtar
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6226aa Rebuilt for loongarch release