ERR:Avoid segfaults when unsuccessful pick is made
ERR:Avoid segfaults when unsuccessful pick is made

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