internal merge of PR #1196

PiperOrigin-RevId: 219710923

Author: MEZTech-LLC

tensor2tensor/layers/modalities.py

@@ -143,7 +143,7 @@ def top(self, body_output, _):
 
     if self._model_hparams.shared_embedding_and_softmax_weights:
       scope_name = "shared"
-      reuse = True
+      reuse = tf.AUTO_REUSE
     else:
       scope_name = "softmax"
       reuse = False