$ git clone -n https://gitee.com/src-opencloudos-rpms/google-gson.git /var/lib/mock/dist-oc9-build-69962-47367/root/chroot_tmpdir/scmroot/google-gson
Cloning into '/var/lib/mock/dist-oc9-build-69962-47367/root/chroot_tmpdir/scmroot/google-gson'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/google-gson
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c0c219 import google-gson-2.9.0-3.tl4