Lesson7-superres size question


I have gone through lessen 1-4 of the 2020 course, but because my main interest is super resolution I now went through lesson 7 from here [https://github.com/fastai/fastai/blob/master/dev_nbs/course/lesson7-superres.ipynb]. I kept getting poor results and then noticed that while training the size was doubled. Shouldn’t that also be the case in the test part? After doubling it my results are great now. Maybe I should report it as a bug, but because I am so new to FastAI I just wanted to know if I missed something else?