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ParaView does not compile anymore since a recent change !1573 (merged)

Here are the compilation errors:

> In file included from /home/joachim/dev/paraview2/ParaViewCore/ServerManager/Rendering/vtkPVComparativeView.cxx:22:0:
> /home/joachim/dev/paraview2/ParaViewCore/ServerManager/Rendering/vtkPVComparativeView.cxx: In static member function ‘static vtkPVComparativeViewNS::vtkCloningVectorOfRepresentations* vtkPVComparativeViewNS::vtkCloningVectorOfRepresentations::New()’:
> /home/joachim/dev/paraview2/VTK/Common/Core/vtkObjectFactory.h:345:39: error: invalid static_cast from type ‘vtkObject*’ to type ‘vtkPVComparativeViewNS::vtkCloningVectorOfRepresentations*’
>      return static_cast<thisClass*>(ret); \
>                                        ^
>     /home/joachim/dev/paraview2/VTK/Common/Core/vtkObjectFactory.h:366:3: note: in expansion of macro ‘VTK_OBJECT_FACTORY_NEW_BODY’
>    VTK_OBJECT_FACTORY_NEW_BODY(thisClass)
>    ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>     /home/joachim/dev/paraview2/ParaViewCore/ServerManager/Rendering/vtkPVComparativeView.cxx:395:5: note: in expansion of macro ‘VTK_STANDARD_NEW_BODY’
>      VTK_STANDARD_NEW_BODY(vtkCloningVectorOfRepresentations);
>      ^~~~~~~~~~~~~~~~~~~~~
>     /home/joachim/dev/paraview2/ParaViewCore/ServerManager/Rendering/vtkPVComparativeView.cxx: In static member function ‘static vtkPVComparativeViewNS::vtkCloningVectorOfViews* vtkPVComparativeViewNS::vtkCloningVectorOfViews::New()’:
> /home/joachim/dev/paraview2/VTK/Common/Core/vtkObjectFactory.h:345:39: error: invalid static_cast from type ‘vtkObject*’ to type ‘vtkPVComparativeViewNS::vtkCloningVectorOfViews*’
>      return static_cast<thisClass*>(ret); \
>                                        ^
>     /home/joachim/dev/paraview2/VTK/Common/Core/vtkObjectFactory.h:366:3: note: in expansion of macro ‘VTK_OBJECT_FACTORY_NEW_BODY’
>    VTK_OBJECT_FACTORY_NEW_BODY(thisClass)
>    ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>     /home/joachim/dev/paraview2/ParaViewCore/ServerManager/Rendering/vtkPVComparativeView.cxx:450:43: note: in expansion of macro ‘VTK_STANDARD_NEW_BODY’
>    static vtkCloningVectorOfViews* New() { VTK_STANDARD_NEW_BODY(vtkCloningVectorOfViews); }

Problem is because with VTK_ALL_NEW_OBJECT_FACTORY=TRUE, vtkObjectFactory.h:364 try to build the object vtkCloningVector as a vtkObject but it is declared only as a vtkObjectBase.

Declaring vtkCloningVector as a vtkObject instead seems to solve the issue.