[fix] freeze 参数冗余存储 兼容shard-reshard (PaddlePaddle#9067)

paddlenlp/trainer/utils/sharding_io.py

@@ -83,7 +83,7 @@ def filter_sharded_params(state_dict, optimizer, sharding_group):
         for (k, v) in state_dict.items():
             if v.name in filtered_parameters:
                 filtered_state_dict[k] = v
-            else:
+            elif v.name not in [p.name for p in parameters]:
                 if sharding_rank == 0:
                     filtered_state_dict[k] = v
     return filtered_state_dict