#1126 PiePlot is cloned incorrectly

[Andrey]

Pie plot is not cloned correctly. It could be reproduced in version 1.17.0
Steps to reproduce:
1) Create chart with Pie plot with any dataset
2) Clone this chart
3) Change colors of sections in cloned chart by using PiePlot.setSectionPaint();
4) Colors will be changed for original chart too

I guess, that PiePlot.sectionPaintMap should be cloned too during cloning original chart to avoid this problem

[David Gilbert]

Thanks for the report. Cloning was very broken, I've committed the fixes for inclusion in the upcoming 1.0.18 release.

David