add logging

search/utils/topic.py

@@ -520,7 +520,7 @@ class TopicUtils(object):
                     }
                 }
             if topic_user_id != -1:
-                query_function_score["query"]["bool"]["must"] += {
+                query_function_score["query"]["bool"]["should"] = {
                     "term": {
                         "user_id": topic_user_id
                     }