Error on tutorials page pytorch_tutorial - wrong output at last code

The page /tutorials/beginner/nlp/pytorch_tutorial.html contains an error:
the code at the bottom, that including

# ... does new_var_z have information to backprop to x and y?
# NO!

is stated to have output “None \n None”

It should be instead

<torch.autograd.function.AddBackward object at 0x7f758cd01234>

EDIT: also publshed an issue on github, I am not sure which is the right place.