[Support request] eCommerce Tracking addon & custom thank you page

Google analytics ecommerce tracking does not work if the product uses a custom thank you page. This seems to be because the control block checks if the queried page is the same id as the default checkout page.

		$checkout_page_id = $this->ASPMain->get_setting( 'checkout_page_id' );
		$page_id = get_queried_object_id();

		if ( $page_id === $checkout_page_id)
...

Is this the expected behaviour, or am I doing something wrong?