$ git clone -n https://gitee.com/src-opencloudos-rpms/virt-v2v.git /var/lib/mock/dist-oc9-build-51786-14595/root/chroot_tmpdir/scmroot/virt-v2v
Cloning into '/var/lib/mock/dist-oc9-build-51786-14595/root/chroot_tmpdir/scmroot/virt-v2v'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/virt-v2v
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bbf71d7 import virt-v2v-2.2.0-2.tl4