Axis labelling in stacked bar chart incorrect when only one series contains non-zero values

[stephenharris]

Codepen

https://codepen.io/anon/pen/eXymGW

Explanation

• What is the behavior you expect?

I expect the y axis to display 0, 1, 2, 3,...

• What is happening instead?

It shows 0, 1, 1, 2, 3

• What error message are you getting?

none

Other observations

• Specifying tickAmount: 1 for the yaxis (or xaxis if its rotated) fixes the issue
• It only impacts low data-points. E.g. increase the value for "Striking Calf" from 3 to 4 and the issue doesn't occur.
• If there is more than one non-empty series, the bug doesn't occur. E.g. if you change Marine Sprite from 0 to 1, or set it to -1