Fix Bark saving (huggingface#33266)

src/transformers/models/bark/modeling_bark.py

@@ -1248,6 +1248,17 @@ def resize_token_embeddings(
 
         return model_embeds
 
+    def _tie_weights(self):
+        if getattr(self.config, "tie_word_embeddings", True):
+            self._tied_weights_keys = []
+            output_embeddings = self.get_output_embeddings()
+            input_embeddings = self.get_input_embeddings()
+
+            for i in range(self.config.n_codes_total - self.config.n_codes_given):
+                # self.input_embeds_layers[i + 1].weight = self.lm_heads[i].weight
+                self._tie_or_clone_weights(output_embeddings[i], input_embeddings[i + 1])
+                self._tied_weights_keys.append(f"lm_heads.{i}.weight")
+
     def tie_weights(self):
         """
         Tie the weights between the input embeddings list and the output embeddings list.