BUG: Fixed the crash when user selected a non data array for edge weight.
BUG: Fixed the crash when user selected a non data array for edge weight.

jmerkow/VTK,Wuteyan/VTK,sankhesh/VTK,cjh1/VTK,sumedhasingla/VTK,Wuteyan/VTK,keithroe/vtkoptix,sumedhasingla/VTK,gram526/VTK,biddisco/VTK,jeffbaumes/jeffbaumes-vtk,msmolens/VTK,SimVascular/VTK,johnkit/vtk-dev,cjh1/VTK,johnkit/vtk-dev,demarle/VTK,naucoin/VTKSlicerWidgets,spthaolt/VTK,jmerkow/VTK,sumedhasingla/VTK,candy7393/VTK,SimVascular/VTK,ashray/VTK-EVM,candy7393/VTK,msmolens/VTK,collects/VTK,spthaolt/VTK,hendradarwin/VTK,cjh1/VTK,arnaudgelas/VTK,sumedhasingla/VTK,jmerkow/VTK,jmerkow/VTK,SimVascular/VTK,mspark93/VTK,johnkit/vtk-dev,spthaolt/VTK,mspark93/VTK,jeffbaumes/jeffbaumes-vtk,daviddoria/PointGraphsPhase1,gram526/VTK,gram526/VTK,ashray/VTK-EVM,naucoin/VTKSlicerWidgets,aashish24/VTK-old,candy7393/VTK,Wuteyan/VTK,arnaudgelas/VTK,mspark93/VTK,daviddoria/PointGraphsPhase1,mspark93/VTK,demarle/VTK,gram526/VTK,demarle/VTK,spthaolt/VTK,biddisco/VTK,mspark93/VTK,demarle/VTK,daviddoria/PointGraphsPhase1,gram526/VTK,sumedhasingla/VTK,candy7393/VTK,sumedhasingla/VTK,berendkleinhaneveld/VTK,aashish24/VTK-old,keithroe/vtkoptix,candy7393/VTK,keithroe/vtkoptix,cjh1/VTK,jmerkow/VTK,SimVascular/VTK,johnkit/vtk-dev,sankhesh/VTK,keithroe/vtkoptix,collects/VTK,sankhesh/VTK,collects/VTK,gram526/VTK,biddisco/VTK,hendradarwin/VTK,SimVascular/VTK,jeffbaumes/jeffbaumes-vtk,demarle/VTK,jeffbaumes/jeffbaumes-vtk,demarle/VTK,johnkit/vtk-dev,msmolens/VTK,spthaolt/VTK,biddisco/VTK,daviddoria/PointGraphsPhase1,demarle/VTK,sumedhasingla/VTK,berendkleinhaneveld/VTK,aashish24/VTK-old,Wuteyan/VTK,naucoin/VTKSlicerWidgets,aashish24/VTK-old,naucoin/VTKSlicerWidgets,hendradarwin/VTK,sankhesh/VTK,naucoin/VTKSlicerWidgets,gram526/VTK,cjh1/VTK,daviddoria/PointGraphsPhase1,johnkit/vtk-dev,mspark93/VTK,arnaudgelas/VTK,mspark93/VTK,Wuteyan/VTK,berendkleinhaneveld/VTK,arnaudgelas/VTK,msmolens/VTK,cjh1/VTK,candy7393/VTK,jmerkow/VTK,keithroe/vtkoptix,candy7393/VTK,spthaolt/VTK,biddisco/VTK,arnaudgelas/VTK,berendkleinhaneveld/VTK,biddisco/VTK,mspark93/VTK,sankhesh/VTK,demarle/VTK,daviddoria/PointGraphsPhase1,jeffbaumes/jeffbaumes-vtk,sankhesh/VTK,biddisco/VTK,ashray/VTK-EVM,ashray/VTK-EVM,berendkleinhaneveld/VTK,keithroe/vtkoptix,keithroe/vtkoptix,ashray/VTK-EVM,jeffbaumes/jeffbaumes-vtk,jmerkow/VTK,arnaudgelas/VTK,hendradarwin/VTK,collects/VTK,SimVascular/VTK,gram526/VTK,berendkleinhaneveld/VTK,naucoin/VTKSlicerWidgets,hendradarwin/VTK,aashish24/VTK-old,Wuteyan/VTK,spthaolt/VTK,ashray/VTK-EVM,jmerkow/VTK,ashray/VTK-EVM,keithroe/vtkoptix,msmolens/VTK,hendradarwin/VTK,SimVascular/VTK,msmolens/VTK,Wuteyan/VTK,sumedhasingla/VTK,johnkit/vtk-dev,SimVascular/VTK,collects/VTK,msmolens/VTK,sankhesh/VTK,berendkleinhaneveld/VTK,hendradarwin/VTK,sankhesh/VTK,candy7393/VTK,ashray/VTK-EVM,msmolens/VTK,collects/VTK,aashish24/VTK-old