Update app.py

app.py

@@ -20,7 +20,8 @@ with gr.Blocks() as demo:
     dropdown2 = gr.Dropdown(label="Select", multiselect=True)
     state = gr.State()
 
-    demo.load(
+    gr.on(
+        [demo.load, demo.unload],
         fn=init_choices,
         outputs=state,
     ).then(