Attempt to fix an errant segfault when saving images.
Attempt to fix an errant segfault when saving images.

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