update

src/transformers/tokenization_utils_fast.py

@@ -633,7 +633,7 @@ def _save_pretrained(
             added_tokens_file = os.path.join(
                 save_directory, (filename_prefix + "-" if filename_prefix else "") + ADDED_TOKENS_FILE
             )
-            added_vocab = self.get_added_vocab()
+            added_vocab = {tok: index for tok, index in self.added_tokens_encoder.items() if index > self.vocab_size}
             if added_vocab:
                 with open(added_tokens_file, "w", encoding="utf-8") as f:
                     out_str = json.dumps(added_vocab, indent=2, sort_keys=True, ensure_ascii=False) + "\n"