Thank you. And I found some weird thing on Pokedex. After I save game with fully edited pokedex, some pokemon's 'via trade' data is missing (Lucario, Hippopotas, Hippowdon...) And seems like it's not Italian Petilil but Italian Abomasnow who shouldn't be obtained on my save.
Edit: I just found out that some pokemon's 'via trade' data is already checked (Shellder, Cubone, Marowak, Hitmonlee...) on my save file which I have never connected Internet and never done any kind of editing whatsoever.