pydoclint: Optional arguments false positive

Both of these examples trigger an error DOC105: Function test: Argument names match, but type hints do not match:

def test(var1: Optional[str] = None) -> str:
    """Test function.

    Args:
        var1 (str, optional): var1


    Returns:
        str
    """

def test(var1: str | None = None) -> str:
    """Test function.

    Args:
        var1 (str, optional): var1


    Returns:
        str
    """

Changing the var1 type to str | None solves it, but this is a bit redundant and, as far as I know, inconsistent with how most other tools work. You can see for example the function module_level_function from Sphinx napoleon documentation.