Fix unsorted range error in vtkChartSelectionHelper::BuildSelection
Fix unsorted range error in vtkChartSelectionHelper::BuildSelection

This was sometimes happening in vtkChart::SELECTION_COLUMNS mode.

demarle/VTK,jmerkow/VTK,jmerkow/VTK,sumedhasingla/VTK,gram526/VTK,keithroe/vtkoptix,demarle/VTK,SimVascular/VTK,keithroe/vtkoptix,demarle/VTK,mspark93/VTK,gram526/VTK,mspark93/VTK,mspark93/VTK,msmolens/VTK,gram526/VTK,sankhesh/VTK,jmerkow/VTK,jmerkow/VTK,keithroe/vtkoptix,msmolens/VTK,gram526/VTK,sumedhasingla/VTK,keithroe/vtkoptix,msmolens/VTK,candy7393/VTK,demarle/VTK,sankhesh/VTK,gram526/VTK,sumedhasingla/VTK,SimVascular/VTK,sumedhasingla/VTK,SimVascular/VTK,mspark93/VTK,sankhesh/VTK,sankhesh/VTK,SimVascular/VTK,jmerkow/VTK,msmolens/VTK,msmolens/VTK,SimVascular/VTK,sankhesh/VTK,gram526/VTK,candy7393/VTK,demarle/VTK,candy7393/VTK,gram526/VTK,demarle/VTK,demarle/VTK,gram526/VTK,keithroe/vtkoptix,keithroe/vtkoptix,candy7393/VTK,candy7393/VTK,SimVascular/VTK,candy7393/VTK,msmolens/VTK,jmerkow/VTK,SimVascular/VTK,mspark93/VTK,mspark93/VTK,sankhesh/VTK,msmolens/VTK,mspark93/VTK,mspark93/VTK,candy7393/VTK,keithroe/vtkoptix,keithroe/vtkoptix,sumedhasingla/VTK,sankhesh/VTK,sumedhasingla/VTK,demarle/VTK,msmolens/VTK,sumedhasingla/VTK,sumedhasingla/VTK,SimVascular/VTK,sankhesh/VTK,jmerkow/VTK,candy7393/VTK,jmerkow/VTK