$ git clone -n https://gitee.com/wency_cn/volume_key.git /var/lib/mock/dist-an23-build-503626-74854/root/chroot_tmpdir/scmroot/volume_key
Cloning into '/var/lib/mock/dist-an23-build-503626-74854/root/chroot_tmpdir/scmroot/volume_key'...
$ git fetch origin 509f5b77e5906e8fd89a82644aaa20babdc09ef3:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/volume_key
 * [new ref]         509f5b77e5906e8fd89a82644aaa20babdc09ef3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 509f5b7 Update code from upstream