GetSelectorsForCompositeIds: handle mb with multipieces
vtkDataAssemblyUtilities::GetSelectorsForCompositeIds was not handling multiblock with multipieces correctly. Fixed that.
Backport: paraview/release
Edited by Utkarsh Ayachit
vtkDataAssemblyUtilities::GetSelectorsForCompositeIds was not handling multiblock with multipieces correctly. Fixed that.
Backport: paraview/release