#tf-data The default value of `warm_start` should be `None` instead of...

#tf-data The default value of `warm_start` should be `None` instead of `False`. Setting it to `False` as the default value may break the `tf.data.Options` propagation when users set it to `True` somewhere in the input pipeline.

PiperOrigin-RevId: 564585601

tensorflow/python/data/ops/options.py

@@ -600,7 +600,7 @@ class Options(options_lib.OptionsBase):
           "the expense of requiring more memory to hold prefetched elements "
           "between the time of iterator construction and usage."
       ),
-      default_factory=lambda: True if test_mode.TEST_MODE else False,
+      default_factory=lambda: True if test_mode.TEST_MODE else None,
   )
 
   threading = options_lib.create_option(