Bar Chart Flickers on Null Values

[dmk2014]

Bars which have a null value fill the canvas height with a flickering effect when they are being drawn and subsequently when the user hovers. See attached JS Bin for demo - I changed values for each dataset in 'February' to null. This issue also occurs when string values cannot be parsed as a number, e.g. '-3%'.

https://jsbin.com/vohatuluba/edit?html,js,output

What I believe should be the correct output:

The actual output:

[etimberg]

I think @tannerlinsley changed this behaviour. If you need a work around, changing the data to NaN is supposed to show nothing.

[etimberg]

Flickering fixed in #1845. The tooltip behaviour seems like a separate issue. It is also overridable by changing the tooltip config function to return nothing if the data is NaN.