$ git clone -n https://gitee.com/src-opencloudos-rpms/volume_key.git /var/lib/mock/dist-oc9-build-62553-16463/root/chroot_tmpdir/scmroot/volume_key
Cloning into '/var/lib/mock/dist-oc9-build-62553-16463/root/chroot_tmpdir/scmroot/volume_key'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/volume_key
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8342275 import volume_key-0.3.12-5.tl4