$ git clone -n https://gitee.com/src-opencloudos-rpms/libpq.git /var/lib/mock/dist-oc9-build-137445-79556/root/chroot_tmpdir/scmroot/libpq
Cloning into '/var/lib/mock/dist-oc9-build-137445-79556/root/chroot_tmpdir/scmroot/libpq'...
$ git fetch origin 6f9d4bfb0a2a01cdf8ef1ebdeb0488cb1081e3cc:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libpq
 * [new ref]         6f9d4bfb0a2a01cdf8ef1ebdeb0488cb1081e3cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f9d4bf import libpq-15.13-1.tl4