I am pretty sure there are cases where the group is retargeted to the correct axis, but at least in this case it isn't while it should: ```python >>> arr = ndtest(3) >>> a2 = Axis('a=a0,a1') >>> arr[a2] # <-- correct a a0 a1 0 1 >>> arr[a2[:]] # <-- wrong a a0 a1 a2 0 1 2 ```