"Argument has incompatible type" is [arg-type] and [misc]?

[Dreamsorcerer]

When running mypy on some code I get this error message:
tesla_api/vehicle.py:70: error: Argument 2 to "setdefault" of "TypedDict" has incompatible type "None"; expected "int" [misc]

If i add a type: ignore[misc] to the line, then I get this error message:
tesla_api/vehicle.py:70: error: Argument 2 to "setdefault" of "TypedDict" has incompatible type "None"; expected "int" [arg-type]

Seems that this error is under both misc and arg-type categories.

Excepted behaviour: The error should only appear under the arg-type category, and not require ignoring 2 categories.