Fix a corner case where, given a rotation set to 90/270, setting a full image RoI (equivalent to empty RoI) and subsequently querying the RoI would return a different value.
With image.size = [200, 100], pseudo Bliss code:
image.rotation = 90
image.roi = [0, 0, 100, 200] # Full image RoI
assert image.roi == [0, 0, 100, 200] # FAILED [0, 0, 100, 200] != [0, 0, 200, 100]