In 4.0.7 and 4.1 if I have a high maximum value in my data and its automatically calculated the minimum automatically calculates based on this max value rather than the lowest minimum value.
You can see the minumum on the axes is -100,000 even though the min value is only -1 wasting much of the space used to display the columns. Its going up in units of 20,000 and would be better in this case to only have one minus unit, not all the way to -100000 where nothing is displayed on the chart. This looks a bit nasty on fullscreen charts.