Type of generic property subclass reveals <nothing>

Bug Report

When subclassing property and returning a generic type, mypy reveals <nothing> as the type of the property.
Pyright reveals the expected type.

To Reproduce

from typing import Any, Generic, Optional, Type, TypeVar

T = TypeVar("T")

class customProperty(property, Generic[T]):
    def __get__(self, obj: Any, owner: Optional[Type] = None) -> T:
        return super().__get__(obj, owner)

class C:
    @customProperty
    def prop(self) -> int:
        return 1

reveal_type(C().prop)

Expected Behavior

Revealed type is "builtins.int"

Actual Behavior

Revealed type is "<nothing>"

Your Environment

• Mypy version used: 0.950
• Mypy command-line flags: none
• Mypy configuration options from mypy.ini (and other config files): none
• Python version used: 3.10
• Operating system and version: Ubuntu 22.04

Pyright 1.1.244 however seems to get it right and returns the expected type
Type of "C().prop" is "int"

This could be related to #11115

Inizia eseguendo la riproduzione Python fornita con mypy 0.950 o con un checkout aggiornato e confronta il risultato di reveal_type con l'int atteso. Traccia la gestione delle properties generiche nelle sottoclassi e la issue correlata #11115; il lavoro è completo quando C().prop viene rivelato come builtins.int invece di , con un test di regressione per il caso.