Undefined overrides causes 'too many arguments' error in contract

[0xalecks]

typechain generated this method:

  getAddLiquidityOut(
    tokenAmountsIn: PromiseOrValue<BigNumberish>[],
    overrides?: CallOverrides
  ): Promise<BigNumber>;

If you call it like this;

contract.getAddLiquidityOut(tokens, undefined);

Ether's throws this error:

Error: too many arguments: passed to contract (count=2, expectedCount=1, code=UNEXPECTED_ARGUMENT, version=contracts/5.7.0)

However, it does work if you pass in overrides:

contract.getAddLiquidityOut(tokens, {from: address});

This feels like a bug, I would expect the generated code to handle this instead of forcing me to check for overrides before calling the method.