Fix for the 1 0 1 edge flag case.
Fix for the 1 0 1 edge flag case.

This case was resulting in v1-v2-v3  this patch fixes it to be
v1-v2 as it should be.

Change-Id: I134b437aeb5b9a0452108e2c87a7fee913866fc3

SimVascular/VTK,johnkit/vtk-dev,sankhesh/VTK,mspark93/VTK,ashray/VTK-EVM,sumedhasingla/VTK,hendradarwin/VTK,jmerkow/VTK,johnkit/vtk-dev,sumedhasingla/VTK,SimVascular/VTK,SimVascular/VTK,demarle/VTK,gram526/VTK,candy7393/VTK,candy7393/VTK,msmolens/VTK,mspark93/VTK,sankhesh/VTK,jmerkow/VTK,sankhesh/VTK,candy7393/VTK,candy7393/VTK,sumedhasingla/VTK,johnkit/vtk-dev,jmerkow/VTK,keithroe/vtkoptix,demarle/VTK,gram526/VTK,mspark93/VTK,msmolens/VTK,keithroe/vtkoptix,msmolens/VTK,hendradarwin/VTK,SimVascular/VTK,jmerkow/VTK,candy7393/VTK,msmolens/VTK,sankhesh/VTK,jmerkow/VTK,ashray/VTK-EVM,gram526/VTK,sankhesh/VTK,gram526/VTK,ashray/VTK-EVM,ashray/VTK-EVM,hendradarwin/VTK,candy7393/VTK,demarle/VTK,keithroe/vtkoptix,gram526/VTK,msmolens/VTK,msmolens/VTK,sankhesh/VTK,johnkit/vtk-dev,hendradarwin/VTK,keithroe/vtkoptix,gram526/VTK,candy7393/VTK,hendradarwin/VTK,candy7393/VTK,mspark93/VTK,demarle/VTK,mspark93/VTK,sankhesh/VTK,msmolens/VTK,keithroe/vtkoptix,jmerkow/VTK,ashray/VTK-EVM,mspark93/VTK,demarle/VTK,sumedhasingla/VTK,SimVascular/VTK,ashray/VTK-EVM,demarle/VTK,mspark93/VTK,sumedhasingla/VTK,keithroe/vtkoptix,gram526/VTK,hendradarwin/VTK,johnkit/vtk-dev,demarle/VTK,hendradarwin/VTK,jmerkow/VTK,SimVascular/VTK,jmerkow/VTK,SimVascular/VTK,sankhesh/VTK,keithroe/vtkoptix,gram526/VTK,msmolens/VTK,demarle/VTK,ashray/VTK-EVM,sumedhasingla/VTK,sumedhasingla/VTK,johnkit/vtk-dev,mspark93/VTK,johnkit/vtk-dev,sumedhasingla/VTK,SimVascular/VTK,ashray/VTK-EVM,keithroe/vtkoptix