GAMEPLAY - problem with shrink - shapeshift interaction

When I put cursed blade on a champ and it is reducing level of a shapeshifter before shapeshifting it does reverse when shapeshift occures. So when Nidalee level 2 is shrunk to lvl 1 and then she shapeshift she is back to level 2 in her cougar form. The same applies to all shapeshifters which were shrinked before shapeshifting. If cursed blade reduce level it should reduce not only raw stat of champ and his abilities but their shapeshifting form too...