Wrong Signature for Enum with Specific Dataclass Mixin Scenario

Note: I was thinking about putting this on pyright but it said standard library problems are more suited here, so I'll give it a shot.

I was trying to code an enum with a dataclass mixin where each value is overridden through the first string variable for easier referencing (rather than a dict from str to enum).

from dataclasses import dataclass
from enum import Enum, auto

@dataclass(frozen=True)
class SampleMixin:
    a_string: str
    a_number: int

class SampleEnum(SampleMixin, Enum):
    def __new__(cls, value: str, *_):
        obj = object.__new__(cls)
        obj._value_ = value

        return obj

    foo = "foo", 1
    bar = "bar", 2

class SampleEnum2(Enum):
    foo = auto()
    bar = auto()

baz = SampleEnum("foo")
qux = SampleEnum2("foo")

baz still gets SampleEnum.foo right, but the function signature is incorrectly identified. Ideally, it should be closer to SampleEnum2's function signature.

I'm open to workarounds at the meantime. The code runs correctly, it's just that the inferred signature I got was wrong.

Code sample in pyright playground.

Pythonでの再現とリンクされたpyright playgroundから始め、SampleEnumとSampleEnum2について推論されたシグネチャを比較します。typeshedにある標準ライブラリのenumおよびdataclassの関連する型付け定義を追跡し、dataclass-mixinのケースでランタイムの動作を変更せずに意図したenumコンストラクターのシグネチャが生成されることを確認したら、完了とします。