rlm_sql error in pre2

In some cases I do not have the need to query for groupmembership. When I undefine group_membership_query, I get the following error: rlm_sql (voipsipsql): Error retrieving group list^M rlm_sql (voipsipsql): Error processing groups; rejecting user Maybe an information about the non availability of groupmembership would be more helpful than an error ? Norbert Wegener