$ git clone -n https://gitee.com/src-opencloudos-rpms/python-dateutil.git /var/lib/mock/dist-oc9-build-63987-16463/root/chroot_tmpdir/scmroot/python-dateutil
Cloning into '/var/lib/mock/dist-oc9-build-63987-16463/root/chroot_tmpdir/scmroot/python-dateutil'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-dateutil
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb0e2b1 import python-dateutil-2.8.2-6.tl4