Draft: SDC ComponentElement: Transform slots scalar values to #plain_text instead of throwing an exception

core/includes/form.inc

@@ -663,7 +663,7 @@ function template_preprocess_form_element_label(&$variables) {
  *   // The 'success' parameter means no fatal PHP errors were detected. All
  *   // other error management should be handled using 'results'.
  *   if ($success) {
- *     $message = \Drupal::translation()->formatPlural(count($results), 'One post processed.', '@count posts processed.');
+ *     $message = \Drupal::translation()->formatPlural(count($results), 'One item processed.', '@count items processed.');
  *   }
  *   else {
  *     $message = t('Finished with an error.');