$ git clone -n https://gitee.com/src-opencloudos-rpms/msgpack.git /var/lib/mock/dist-oc9-build-43089-14591/root/chroot_tmpdir/scmroot/msgpack
Cloning into '/var/lib/mock/dist-oc9-build-43089-14591/root/chroot_tmpdir/scmroot/msgpack'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/msgpack
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aa1a472 import msgpack-3.1.0-3.tl4