Change event on expiry month not firing when two inputs used for valid to field

When using two different inputs for Valid to (Month and year), the change event it's not firing on the month field.

`

```
var initCard = function () {
new Card({
form: document.querySelector('form'),
container: '.card-wrapper',
formSelectors: {
expiryInput: ['input[name="expirymonth"]', 'input[name="expiryyear"]'] }
});
}

$(document).ready(function () {
initCard();

$('input[name="expirymonth"]').change(function () {
console.log("hey");
});

$('input[name="expiryyear"]').change(function () {
console.log("hey you");
});

});
```

`