$ git clone -n https://gitee.com/opencloudos-stream/openvpn.git /var/lib/mock/dist-oc9-epol-build-235187-82098/root/chroot_tmpdir/scmroot/openvpn
Cloning into '/var/lib/mock/dist-oc9-epol-build-235187-82098/root/chroot_tmpdir/scmroot/openvpn'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/openvpn
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 01cca9e !7 Update to 2.7.0 Merge pull request !7 from anakinzhang/master