BUG: vtkTable MTime would sometimes not be affected at all on ShallowCopy or

DeepCopy. This was causing issues with ParaView when plotting. Fixed that by
explicitly calling Modified() in these methods. We may want to investigate
simply moving this Modified() call to vtkDataObject.

Filtering/vtkTable.cxx

@@ -34,7 +34,7 @@
 // Standard functions
 //
 
-vtkCxxRevisionMacro(vtkTable, "1.21");
+vtkCxxRevisionMacro(vtkTable, "1.22");
 vtkStandardNewMacro(vtkTable);
 vtkCxxSetObjectMacro(vtkTable, RowData, vtkDataSetAttributes);
 
@@ -558,9 +558,10 @@ void vtkTable::ShallowCopy(vtkDataObject* src)
   if (vtkTable* const table = vtkTable::SafeDownCast(src))
     {
     this->RowData->ShallowCopy(table->RowData);
+    this->Modified();
     }
 
-  Superclass::ShallowCopy(src);
+  this->Superclass::ShallowCopy(src);
 }
 
 //----------------------------------------------------------------------------
@@ -569,6 +570,7 @@ void vtkTable::DeepCopy(vtkDataObject* src)
   if (vtkTable* const table = vtkTable::SafeDownCast(src))
     {
     this->RowData->DeepCopy(table->RowData);
+    this->Modified();
     }
 
   Superclass::DeepCopy(src);