Arun Sahijpal
--- a/core/modules/search/src/Form/ReindexConfirm.php
+++ b/core/modules/search/src/Form/ReindexConfirm.php
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
-    if ($form['confirm']) {
-      // Ask each active search page to mark itself for re-index.
-      $search_page_repository = \Drupal::service('search.search_page_repository');
-      foreach ($search_page_repository->getIndexableSearchPages() as $entity) {
-        $entity->getPlugin()->markForReindex();
-      }
-      $this->messenger()->addStatus($this->t('All search indexes will be rebuilt.'));
-      $form_state->setRedirectUrl($this->getCancelUrl());
+    // Ask each active search page to mark itself for re-index.
--- a/core/modules/user/src/Form/UserMultipleCancelConfirm.php
+++ b/core/modules/user/src/Form/UserMultipleCancelConfirm.php
-          $admin_form_mock = [];
-          $admin_form_state = $form_state;
-          $admin_form_state->unsetValue('user_cancel_confirm');
-          // The $user global is not a complete user entity, so load the full
-          // entity.
-          $account = $this->userStorage->load($uid);
-          $admin_form = $this->entityTypeManager->getFormObject('user', 'cancel');
-          $admin_form->setEntity($account);
-          // Calling this directly required to init form object with $account.
-          $admin_form->buildForm($admin_form_mock, $admin_form_state);
-          $admin_form->submitForm($admin_form_mock, $admin_form_state);
-        }
-        else {
-          user_cancel($form_state->getValues(), $uid, $form_state->getValue('user_cancel_method'));
-        }
+    foreach ($form_state->getValue('accounts') as $uid => $value) {
--- a/core/lib/Drupal/Core/Entity/ContentEntityConfirmFormBase.php
+++ b/core/lib/Drupal/Core/Entity/ContentEntityConfirmFormBase.php
  }

  /**
-   * {@inheritdoc}
+   * Returns the internal name used to refer to the confirmation item.
+   *
+   * @return string
+   *   The internal form name.
   */
  public function getFormName() {
+    @trigger_error('ConfirmFormBase::getFormName() is deprecated in drupal:11.2.0 and will be removed in drupal:12.0.0. Implementations should remove this method. See https://www.drupal.org/node/3505037', E_USER_DEPRECATED);
--- a/core/lib/Drupal/Core/Entity/EntityConfirmFormBase.php
+++ b/core/lib/Drupal/Core/Entity/EntityConfirmFormBase.php
  }

  /**
-   * {@inheritdoc}
+   * Returns the internal name used to refer to the confirmation item.
+   *
+   * @return string
+   *   The internal form name.
   */
  public function getFormName() {
+    @trigger_error('ConfirmFormBase::getFormName() is deprecated in drupal:11.2.0 and will be removed in drupal:12.0.0. Implementations should remove this method. See https://www.drupal.org/node/3505037', E_USER_DEPRECATED);