Make WooCommerce Order Notes searchable by SearchWP

searchwp-customizations.php

<?php

// Make WooCommerce Order Notes searchable by SearchWP.
// @link https://searchwp.com/documentation/knowledge-base/search-woocommerce-orders/
add_action( 'searchwp\source\post\attributes\comments', function() {
	if ( did_action( 'searchwp\indexer\batch' ) ) {
		remove_filter( 'comments_clauses', [ 'WC_Comments', 'exclude_order_comments' ] );
	}
} );