$ git clone -n https://gitee.com/src-opencloudos-rpms/tar.git /var/lib/mock/dist-oc8-build-198459-80430/root/chroot_tmpdir/scmroot/tar
Cloning into '/var/lib/mock/dist-oc8-build-198459-80430/root/chroot_tmpdir/scmroot/tar'...
$ git fetch origin aa104cc020bb16c801c72f0cde7188c57a993c1d:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tar
 * [new ref]         aa104cc020bb16c801c72f0cde7188c57a993c1d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aa104cc import tar-1.30-11.tl3