$ git clone -n https://gitee.com/src-opencloudos-rpms/python-psycopg2.git /var/lib/mock/dist-oc9-build-231493-81605/root/chroot_tmpdir/scmroot/python-psycopg2
Cloning into '/var/lib/mock/dist-oc9-build-231493-81605/root/chroot_tmpdir/scmroot/python-psycopg2'...
$ git fetch origin 4386afcc860c182dab3d35e1a1afccb1a12e5545:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-psycopg2
 * [new ref]         4386afcc860c182dab3d35e1a1afccb1a12e5545 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4386afc import python-psycopg2-2.9.6-6.tl4