Tie weights correctly and update weights

model.safetensors

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:a0931732cefbda398920d6a13bfc7eefc6c457a1463a17c7f4930b68b74b46d5
-size 542001482
+oid sha256:43c6d08c6afba4b18c373b5c0f94be59550c84ffe17993c1d3c2fe06c46f94ea
+size 463221938

modeling_florence2.py

@@ -2066,6 +2066,12 @@ class Florence2LanguageForConditionalGeneration(Florence2LanguagePreTrainedModel
         # Initialize weights and apply final processing
         self.post_init()
 
+    def _tie_weights(self):
+        if self.config.tie_word_embeddings:
+            self._tie_or_clone_weights(self.model.encoder.embed_tokens, self.model.shared)
+            self._tie_or_clone_weights(self.model.decoder.embed_tokens, self.model.shared)
+            self._tie_or_clone_weights(self.lm_head, self.model.shared)
+
     def get_encoder(self):
         return self.model.get_encoder()