$ git clone -n https://gitee.com/opencloudos-stream/rpkg.git /var/lib/mock/dist-oc9-epol-build-80790-53977/root/chroot_tmpdir/scmroot/rpkg
Cloning into '/var/lib/mock/dist-oc9-epol-build-80790-53977/root/chroot_tmpdir/scmroot/rpkg'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/rpkg
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96fe56d !3 Use system-rpm-config Merge pull request !3 from gordonwwang/master