Why no upscale in image augmentations?

[vedantroy]

The SimCLR paper says:

In this work, we sequentially apply three simple augmentations: random
cropping followed by resize back to the original size, random color distortions, and random Gaussian blur

but it seems like the augmentations used in this repository first do a random crop, but do not afterwards resize the crop back to the original size. Why the difference? Am I misunderstanding the SimCLR paper?