Modified the _build_pokemons function in build.py to handle the new fields appropriately, ensuring compatibility with existing data structures.

data/v2/build.py

@@ -2073,6 +2073,8 @@ def _build_pokemons():
             trade_species_id=int(info[17]) if info[17] != "" else None,
             needs_overworld_rain=bool(int(info[18])),
             turn_upside_down=bool(int(info[19])),
+            region_restriction_id=int(info[20]) if info[20] != "" else None,
+            base_form_required_id=int(info[21]) if info[21] != "" else None,
         )
 
     build_generic((PokemonEvolution,), "pokemon_evolution.csv", csv_record_to_objects)