How to Enable Revisions for WooCommerce Products

functions.php

/*
 * Add Revision support to WooCommerce Products
 * 
 */

add_filter( 'woocommerce_register_post_type_product', 'cinch_add_revision_support' );

function cinch_add_revision_support( $args ) {
     $args['supports'][] = 'revisions';

     return $args;
}