Fixed nasty new bug with vtkExecutives and vtkAlgorithms.
Fixed nasty new bug with vtkExecutives and vtkAlgorithms.

nagyistoce/devide,nagyistoce/devide,zhangfangyan/devide,ivoflipse/devide,fvpolpeta/devide,chrisidefix/devide,zhangfangyan/devide,chrisidefix/devide,ivoflipse/devide,fvpolpeta/devide