$ git clone -n https://gitee.com/src-opencloudos-rpms/python-psycopg2.git /var/lib/mock/dist-oc9-build-44548-14591/root/chroot_tmpdir/scmroot/python-psycopg2
Cloning into '/var/lib/mock/dist-oc9-build-44548-14591/root/chroot_tmpdir/scmroot/python-psycopg2'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-psycopg2
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dbdfea3 import python-psycopg2-2.9.3-4.tl4