$ git clone -n https://gitee.com/opencloudos-stream/openstack-neutron.git /var/lib/mock/dist-oc9-epol-build-68598-47008/root/chroot_tmpdir/scmroot/openstack-neutron
Cloning into '/var/lib/mock/dist-oc9-epol-build-68598-47008/root/chroot_tmpdir/scmroot/openstack-neutron'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/openstack-neutron
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bce399c !2 upgrade to 21.1.2 Merge pull request !2 from Jackey_1024/master