自动客服 fix

@@ -58,8 +58,10 @@ public class RobotRelatedQuestionMqListener extends AbstractMqListener {
         RobotQuestionIndexBO robotQuestionIndexBO = new RobotQuestionIndexBO();
         robotQuestionIndexBO.setId(robotRelatedQuestion.getId());
         robotQuestionIndexBO.setQuestion(robotRelatedQuestion.getQuestion());
+        if(robotKnowledgeBase!=null){
             robotQuestionIndexBO.setKeywords(robotKnowledgeBase.getKeywords());
             robotQuestionIndexBO.setSynonym(robotKnowledgeBase.getSynonym());
+        }
         String idValue = robotQuestionIndexBO.getId().toString();
         indexService.updateIndexData(this.getIndexName(), idValue, robotQuestionIndexBO);
     }