$ git clone -n https://gitee.com/src-opencloudos-rpms/postgresql.git /var/lib/mock/dist-oc9-build-71482-47558/root/chroot_tmpdir/scmroot/postgresql
Cloning into '/var/lib/mock/dist-oc9-build-71482-47558/root/chroot_tmpdir/scmroot/postgresql'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/postgresql
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b43c00e import postgresql-15.5-1.tl4