$ git clone -n https://gitee.com/src-opencloudos-rpms/xmvn.git /var/lib/mock/dist-oc9-build-45590-14591/root/chroot_tmpdir/scmroot/xmvn
Cloning into '/var/lib/mock/dist-oc9-build-45590-14591/root/chroot_tmpdir/scmroot/xmvn'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/xmvn
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21e5215 import xmvn-4.0.0-7.tl4