🐛Bug
Hi,

I am running into an issue loading a 4D fMRI nifti. Here's a sample file:

https://openneuro.org/crn/datasets/ds001506/snapshots/1.3.1/files/sub-01:ses-perceptionNaturalImageTraining01:func:sub-01_ses-perceptionNaturalImageTraining01_task-perception_run-01_bold.nii.gz

These ones require channels_last=True

In torchio 0.18.48 it correctly loads with a shape of (239, 96, 96, 76), but starting in 0.18.49 I get (1, 96, 96, 76, 239)

All I am doing is loading the image and checking the shape. Please let me know if there are issues reproducing.