False-positive TCH003: lint.typing-modules setting is not honored in the typing module itself

[bersbersbers]

lint.typing-modules allows defining compatibility modules whose exports will be treated the same as the exports from the typing module. However, this does not seem to work in the module itself - ruff does not seem to understand that TYPE_CHECKING defines a type-checking block in this example:

bug.py

from __future__ import annotations

import typing

def is_type_checking() -> bool:
    # This will be more complicated, obviously
    return 4 < 10

# This should be considered a typing module's TYPE_CHECKING variable:
TYPE_CHECKING = typing.TYPE_CHECKING or is_type_checking()

if TYPE_CHECKING:
    # So I consider this a false-negative TCH003
    from collections.abc import Iterable

def fun(_var: Iterable[str]) -> None:
    return None

pyproject.toml

[tool.ruff]
lint.select = ["TCH003"]
lint.typing-modules = ["bug"]

ruff check bug.py

bug.py:14:33: TCH003 Move standard library import `collections.abc.Iterable` into a type-checking block
Found 1 error.
No fixes available (1 hidden fix can be enabled with the `--unsafe-fixes` option).

ruff --version

ruff 0.4.7