Issue #3295609 by taniachque, Berdir: [Drupal 9.2.x] Replace jquery.once with new once API

   */

  Drupal.behaviors.webformExcludedElementsComposite = {

    attach: function (context) {

      $(once('webform-excluded-elements', '.form-type-webform-excluded-elements [data-composite] input:checkbox'))

      $(once('webform-excluded-elements', '.form-type-webform-excluded-elements [data-composite] input[type="checkbox"]'))

        .on('click', function () {

          var checked = this.checked;

          var compositeKey = this.value;