Importing the same top-level module through two submodule imports, one at runtime and one in a type-checking block, results in TCH004 false positives.
This is certainly more of an edge case, seems like it could be related to #60 🤔

Code:

from __future__ import annotations

from typing import TYPE_CHECKING
import importlib.util

if TYPE_CHECKING:
    import importlib.machinery


def from_spec(spec: importlib.machinery.ModuleSpec):
    return importlib.util.module_from_spec(spec)

Running ruff check --isolated --select TCH test.py (v0.0.260) produces the following error:

test.py:7:12: TCH004 Move import `importlib.machinery` out of type-checking block. Import is used for more than type hinting.

I don't know a whole lot about ruff's internals, but my assumption is that the importlib.machinery import in the type-checking block overwrites the importlib binding, and the importlib.util.module_from_spec call later resolves to that.