Fix StemSeries Tracking (#809)
Fix StemSeries Tracking (#809)

olegtarasov/oxyplot,Isolocis/oxyplot,shoelzer/oxyplot,DotNetDoctor/oxyplot,Jonarw/oxyplot,objorke/oxyplot,Kaplas80/oxyplot,HermanEldering/oxyplot,DotNetDoctor/oxyplot,objorke/oxyplot,objorke/oxyplot,HermanEldering/oxyplot,shoelzer/oxyplot,olegtarasov/oxyplot,Jofta/oxyplot,ze-pequeno/oxyplot,shoelzer/oxyplot,NilesDavis/oxyplot,Kaplas80/oxyplot,zur003/oxyplot,oxyplot/oxyplot