[schema, ui] fix is_subobject to skip cw_source relation (else everything is considered as a subobject, since this relation is now composite)
#! /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