[ms] fix planning bug introduced with recent rql refactoring for queries with only eids (fix unittest_multisources.test_in_eid)
#! /bin/sh -e#if [ "$1" = configure ]; then if which install-docs >/dev/null 2>&1; then install-docs -i /usr/share/doc-base/cubicweb-doc fifi#DEBHELPER#exit 0