Array's size can't be set to 0

With the introduction of push and pop the array size can be reduced to 0, but the "set size" action won't let you make the array empty (or 0).

For instance:

Array| set size (0,1,1)

will result in an array of size (1,1,1)

It can be worked around by doing a pop on the x axis, but it would be nice to remove the restriction that the smallest set size is (1,1,1).

-cheers