Input value type is not replaced in GenericObjectValidator validation error

[sorenmalling]

The first condition check in the GeneircObjectValidator goes likes this

    protected function isValid($object)
    {
        if (!is_object($object)) {
            $this->addError('Object expected, %1$s given.', 1241099149, [gettype($object)]);
            return;
        }
    ...
    }

The value %1$s is never replaced (done by a vsprintf in the render method of a Result object)