$ git clone -n https://gitee.com/opencloudos-stream/rear.git /var/lib/mock/dist-ocs23-build-68406-3857/root/chroot_tmpdir/scmroot/rear
Cloning into '/var/lib/mock/dist-ocs23-build-68406-3857/root/chroot_tmpdir/scmroot/rear'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/rear
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c1ee57d Rebuilt for OpenCloudOS Stream 23.09