Update app.py

app.py

@@ -407,7 +407,7 @@ with gr.Blocks(css=custom_css) as iface:
             response_stream = process_question(question)
             for response, _ in response_stream:
                 gr.update(value=response)
-                yield response
+            yield response
 
         submit_btn.click(
             fn=stream_response,