Add values natural order check to layers grouped validation

Author: bukejiyu

fastdeploy/model_executor/load_weight_utils.py

@@ -72,6 +72,11 @@ def layers_are_grouped(keys):
     return True
 
 
+def values_are_naturally_ordered(values):
+    """Check if values are sorted in natural order."""
+    return list(values) == sorted(values, key=natural_key)
+
+
 def pdparams_weight_iterator(paddle_file_list: list[str]):
     for pdparams_file in tqdm(
         paddle_file_list,
@@ -532,7 +537,10 @@ def get_all_weights_file(model_path: str):
             with index_file.open("r") as f:
                 weight_map = json.load(f)["weight_map"]
             keys = list(weight_map.keys())
-            is_layers_are_grouped = layers_are_grouped(keys)
+            values = list(weight_map.values())
+            is_keys_orders = layers_are_grouped(keys)
+            is_values_naturally_ordered = values_are_naturally_ordered(values)
+            is_layers_are_grouped = is_keys_orders and is_values_naturally_ordered
             ordered_weight_map = {
                 key: str(model_path / weight_map[key]) for key in sorted(weight_map.keys(), key=natural_key)
             }