Strange error when declaring `@final` property

Bug Report

Consider this code:

from typing import final

class A:
    def __init__(self):
        self._x = 4

    @property
    @final  # E: @final should be applied only to overload implementation
    def x(self) -> int:
        return self._x

    @x.setter
    def x(self, value) -> None:
        self._x = value
        
        
class B(A):

    @property  # E: Cannot override final attribute "x" (previously declared in base class "A")
    def x(self) -> int:
        return self._x

    @x.setter
    def x(self, value) -> None:
        self._x = value

https://mypy-play.net/?mypy=latest&python=3.11&gist=a4a1981a3db4ac546b9947bb344a5fd5

Mypy complains that @final is not applied to the "overload implementation", but the property is still successfully declared final.

I tried moving the @final decorator to the setter – in that case, mypy's first error goes away, but then also the second error vanishes, meaning that x wasn't actually marked as final.

(I also tried moving @final above @property but that produces the same result.)

Environment:
See mypy-play link above.

Beginne mit dem reproduzierbaren Beispiel im Issue oder dem verlinkten mypy-play-Fall und vergleiche die Platzierung von @final am Property-Getter und -Setter. Verfolge, wie mypy final-Decorator validiert und Property-Attribute aufzeichnet, füge dann Abdeckung für diese Deklaration hinzu und überprüfe, dass die Diagnosen konsistent widerspiegeln, ob die Property final ist.