message: Use the default strategy if no strategy is specified in v2 inside the new V2 codepath.
diff: @@ -371,8 +371,8 @@ class Loop(training_utils.TrainingLoop):
  def _get_distribution_strategy(model):
  if model._distribution_strategy:
  return model._distribution_strategy
  - # TODO(scottzhu): might want to just get the default strategy in future.
  - elif distribution_strategy_context.has_strategy():
  + elif not distribution_strategy_context.has_strategy():
  + # Use the default strategy if no strategy is specified.
  return distribution_strategy_context.get_strategy()
  else:
  return None
  