dataclass(frozen=True) not working with default Final qualifier

[mflova]

Bug Report

When using Final type hint in combination with dataclass(frozen=True), mypy displays an error. This error disappears either if frozen=True is removed or the type of Final is provided.

To Reproduce

from dataclasses import dataclass
from typing import Final


@dataclass
class Foo:
    var: Final = "a"

@dataclass(frozen=True)
class Foo2:
    var: Final = "a"

@dataclass(frozen=True)
class Foo3:
    var: Final[str] = "a"

foo = Foo()
foo.var  # OK

foo2 = Foo2()
foo2.var  # ERROR: "Foo" not callable [operator]

foo3 = Foo3()
foo3.var  # OK

Your Environment

• Mypy version used: 1.14.1
• Mypy command-line flags: mypy script.py
• Mypy configuration options from mypy.ini (and other config files): None
• Python version used: 3.10.11