F.interpolate will most likely call this method 65 and just copy the inputs to the output tensor.
I think it’s just possible to really trigger the interpolation by changing the size slightly.
Do you need to backpropagate through this interpolation? If no, then you could use a numpy or scipy implementation. I’m not sure how general this use case is, but it might be worth to create a feature request on GitHub and discuss your use case there.