Fatal Error class-woo-product-stock-alert-ajax.php line 222

Hi guys,
I discovered an error in the plugin on PHP8 version.
When you try to sign in for an alert for out-of-stock variation, ajax throws fatal error – “unsupported operand types int+string”.
I fixed it by changing:

$no_of_subscribers = get_post_meta( $child_id, 'no_of_subscribers', true );
to:
$no_of_subscribers = intval(get_post_meta( $child_id, 'no_of_subscribers', true ));

Devs, can you please include this change into your next update?