Update app.py

app.py

@@ -68,6 +68,7 @@ def chat_with_ai(user_input, chat_history):
     complete_response = str(response) + "\n\n" + "references:" + str(ref) + "\n\n" + "pages:" + str(pages)
     if ref !=[] or pages!=[]:
       chat_history.append((user_input, complete_response))
+      ref = []
     elif ref==[] or pages==[]:
       chat_history.append((user_input,str(response)))