fix: 修复节点直接回答,不同节点响应用回车隔开 (#935)

(cherry picked from commit 8453ea2b4b)

apps/application/flow/i_step_node.py

@@ -28,8 +28,9 @@ def write_context(step_variable: Dict, global_variable: Dict, node, workflow):
         for key in step_variable:
             node.context[key] = step_variable[key]
         if workflow.is_result() and 'answer' in step_variable:
-            yield step_variable['answer']
-            workflow.answer += step_variable['answer']
+            answer = step_variable['answer'] + '\n'
+            yield answer
+            workflow.answer += answer
     if global_variable is not None:
         for key in global_variable:
             workflow.context[key] = global_variable[key]

apps/application/flow/step_node/ai_chat_step_node/impl/base_chat_node.py

@@ -45,6 +45,8 @@ def write_context_stream(node_variable: Dict, workflow_variable: Dict, node: INo
     for chunk in response:
         answer += chunk.content
         yield chunk.content
+    answer += '\n'
+    yield '\n'
     _write_context(node_variable, workflow_variable, node, workflow, answer)
 
 

apps/application/flow/step_node/question_node/impl/base_question_node.py

@@ -45,6 +45,8 @@ def write_context_stream(node_variable: Dict, workflow_variable: Dict, node: INo
     for chunk in response:
         answer += chunk.content
         yield chunk.content
+    answer += '\n'
+    yield '\n'
     _write_context(node_variable, workflow_variable, node, workflow, answer)