Update app.py

app.py

@@ -268,7 +268,9 @@ def handle_query(query):
     #return map_image, satellite_image, empty_map_image, mask_image, response['output']['feature_representation']['properties']['description']
 
 def update_query(selected_query):
-    return [selected_query]
+    if isinstance(selected_query, str):
+        return [selected_query]
+    return [""]  # fallback to avoid None/bool return
 
 query_options = [
     "Area covering south asian subcontinent",