Use regular price instead of sale price for calculating subscriptions discounts - All Products for WooCommerce Subscriptions

apfs-regular-price-for-subscriptions-discounts.php

<?php

/**
 * Plugin Name: All Products for WooCommerce Subscriptions - Use regular price instead of sale price for calculating subscriptions discounts
 * Plugin URI: https://woocommerce.com/products/all-products-for-woocommerce-subscriptions/
 * Description: Use this snippet to hide cart item subscription options for free products.
 * Version: 1.0
 * Author: Renan Diaz
 * Author URI: https://nativo.team/
 * Developer: Renan Diaz 
 */
 
add_filter( 'wcsatt_discount_from_regular', 'theme_wcsatt_discount_from_regular_callback', 999999999999999999 );

function theme_wcsatt_discount_from_regular_callback($return_value){
    return true;
}