Allow Image Resizing in Pipelines
Currently, if an Image source has a certain Extent, Paraview will pass that as UPDATE_EXTENT to all subsequent filters in the pipeline, even if a filter changes the whole extent. This prohibits for example implementing vtkImageConstantPad as a useful Paraview filter. For further info see http://markmail.org/message/sfnw7sgojytzw6y2 .
Adminberk.geveci (Admin, paraview) commented
This is definitely a bug. I submitted a report with the tracker with id 10125