$ git clone -n https://gitee.com/opencloudos-stream/basesystem.git /var/lib/mock/dist-ocs23-build-117262-8235/root/chroot_tmpdir/scmroot/basesystem
Cloning into '/var/lib/mock/dist-ocs23-build-117262-8235/root/chroot_tmpdir/scmroot/basesystem'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/basesystem
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91a3514 !1 从setup拆分出basesystem Merge pull request !1 from nilusyi/master