[Pharo-dev] Intervals behaviour for negative numbers, normal or bug ?

while I was recording my Interval video tutorial I observed that Interval does not behave as I would expect . Even though (1 to: 100) works as I expect, (1 to: -100) does not. In case of ( 1 to: -100) it created the interval object but it does not populate it with the numbers. I would expect it to populate the interval with the numbers or at least fail with an error. This does not look to me like normal behaviour. (-100 to: 1) on the other hand work as expected. Any thoughts on this issue ?