Fixed the hook name for #9290

cc @jeffstieler

includes/wc-user-functions.php

@@ -547,4 +547,5 @@ function wc_reset_order_customer_id_on_deleted_user( $user_id ) {
 
 	$wpdb->update( $wpdb->postmeta, array( '_customer_user' => 0 ), array( '_customer_user' => $user_id ) );
 }
-add_action( 'deleted_user', 'wc_reset_customer_id_on_delete_user' );
+
+add_action( 'deleted_user', 'wc_reset_order_customer_id_on_deleted_user' );