fix: Workflow non streaming dialogue cannot respond (#2188)

apps/application/flow/workflow_manage.py

@@ -335,7 +335,9 @@ def run_block(self, language='zh'):
         answer_tokens = sum([row.get('answer_tokens') for row in details.values() if
                              'answer_tokens' in row and row.get('answer_tokens') is not None])
         answer_text_list = self.get_answer_text_list()
-        answer_text = '\n\n'.join(answer['content'] for answer in answer_text_list)
+        answer_text = '\n\n'.join(
+            '\n\n'.join([a.get('content') for a in answer]) for answer in
+            answer_text_list)
         self.work_flow_post_handler.handler(self.params['chat_id'], self.params['chat_record_id'],
                                             answer_text,
                                             self)