Unpacking a NamedTuple in a dictionary index loses type information #5630

from typing import NamedTuple

class Key(NamedTuple):
   name: str
   version: int

def lookup(key: Key, values: dict[tuple[str, int, int], str]) -> None:
   values[*key, 0]                    # Rejected
   values[key.name, key.version, 0]  # Accepted

def plain_tuple(key: tuple[str, int], values: dict[tuple[str, int, int], str]) -> None:
   values[*key, 0]  # Accepted