m2015a imagesc issue

[enigmaldc]

I have used this tool in matlab 2013a and it works perfectly. In matlab 2015a, the exact code gives a issue with exporting imagesc figures with colorbars. It exports, but It always displays a white diagonal stripe from botton left to top right on the colorbar in the pdf. This occurs no matter which colormap I use. (see attached, I took a screenshot of the pdf file)

%code
R = rand(50,50);
figure(111)
imagesc(R)
colormap(hot)
v = colorbar;
axis square
h = gcf;
set(h,'PaperPositionMode','auto');
set(gca,'YDir','normal');
set(h,'Position',[40 40 800 600]);
set(h, 'Color', 'w');
name = [pwd '\figures\error_example' num2str(dataset) '.pdf'];
export_fig(name,'-painters','-q101','-nocrop')

[altmany]

This is apparently a duplicate of issue #44, due to internal Matlab bug in HG2 [R2014+]