Issue #3355157 by jrockowitz: Custom Settings for date format should be...

Issue #3355157 by jrockowitz: Custom Settings for date format should be removed when a field switches to "Date List"

modules/webform_jqueryui_datepicker/webform_jqueryui_datepicker.module

@@ -10,6 +10,7 @@ use Drupal\Core\Form\FormStateInterface;
 use Drupal\webform\Plugin\WebformElement\DateBase;
 use Drupal\webform\Plugin\WebformElement\Date;
 use Drupal\webform\Plugin\WebformElement\DateTime;
+use Drupal\webform\Plugin\WebformElement\DateList;
 
 /**
  * Implements hook_webform_element_default_properties_alter().
@@ -196,6 +197,15 @@ function webform_jqueryui_datepicker_webform_element_alter(array &$element, Form
     && $element['#date_date_element'] === 'datepicker') {
     $element['#attached']['library'][] = 'webform_jqueryui_datepicker/webform_jqueryui_datepicker.element';
   }
+
+  // DateList element.
+  if ($element_plugin instanceof DateList) {
+    // Unset unsupported datepicker and data format for date list elements.
+    unset(
+      $element['#datepicker'],
+      $element['#date_date_format']
+    );
+  }
 }
 
 /**