CALC / CHART Range Fill Color and Legend behaviour seems odd

I’m trying out the “Range for Fill Color” feature, and finding odd results.

In a simple pie chart example, the pie colors are changing correctly, however the legend colors remain at the automatically assigned values. To get the legend colours to match, I have to manually select each data point and select the same color as used by the Fill Color Range.

This seems counter productive and negates the benefit of the Range Fill Color function? (which I find very useful)

Here’s a simple example: Chart_Colour_Fill.ods

Is this a bug or am I misunderstanding the technique?

Using LO on Win7.

Its a bug, and there is the Bugreport

The bug is still there 5 years after it was first seen. Is this normal?