Merge topic 'fix_unitialized_ivar_xdmfreader'

8e245677 fix unitialized ivar warning
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Berk Geveci <berk.geveci@kitware.com>
Merge-request: !4747

IO/Xdmf2/vtkXdmfReader.cxx

@@ -112,6 +112,7 @@ vtkXdmfReader::vtkXdmfReader()
   this->InputString = nullptr;
   this->InputStringLength = 0;
   this->InputStringPos = 0;
+  this->InputArray = nullptr;
 
   this->SetNumberOfInputPorts(0);
 }