Update app.py

app.py

@@ -290,7 +290,7 @@ def bot(history, temperature, top_p, max_output_tokens):
             if previous_image:
                 gr.Warning("Only one image can be uploaded in a conversation. Please reduce the number of images and start a new conversation.")
                 our_chatbot.conversation = conv_templates[our_chatbot.conv_mode].copy()
-                return history 
+                return None
             # print("### message[0]",message[0])
             # if len(message[0])>1:
             #     gr.Warning("Only one image can be uploaded in a conversation. Please reduce the number of images and start a new conversation.")
@@ -314,6 +314,8 @@ def bot(history, temperature, top_p, max_output_tokens):
     #     images_this_term.append(message[0][0])
 
     
+
+    
     assert len(images_this_term) > 0, "must have an image"
     # image_files = (args.image_file).split(',')
     # image = [load_image(f) for f in images_this_term if f]