presence is a 4-letter word

src/mod/endpoints/mod_sofia/sofia_presence.c

@@ -818,7 +818,7 @@ static void actual_sofia_presence_event_handler(switch_event_t *event)
 		sofia_glue_execute_sql_callback(profile, profile->ireg_mutex, sql, sofia_presence_dialog_callback, &dh);
 		switch_safe_free(sql);
 		
-		if ((sql = switch_mprintf("select sip_subscriptions.proto,sip_subscriptions.sip_user,sip_subscriptions.sip_host,"
+		if ((sql = switch_mprintf("select distinct sip_subscriptions.proto,sip_subscriptions.sip_user,sip_subscriptions.sip_host,"
 								  "sip_subscriptions.sub_to_user,sip_subscriptions.sub_to_host,sip_subscriptions.event,"
 								  "sip_subscriptions.contact,sip_subscriptions.call_id,sip_subscriptions.full_from,"
 								  "sip_subscriptions.full_via,sip_subscriptions.expires,sip_subscriptions.user_agent,"