Issue #2336483 by er.pushpinderrana | tim.plunkett: Replace Views $form_state...

Issue #2336483 by er.pushpinderrana | tim.plunkett: Replace Views $form_state usage of '#page_title' with 'page_title'.

core/modules/views_ui/src/Form/Ajax/EditDetails.php

@@ -88,7 +88,7 @@ public function submitForm(array &$form, FormStateInterface $form_state) {
     if (isset($bases[$view->get('base_table')])) {
       $page_title .= ' (' . $bases[$view->get('base_table')]['title'] . ')';
     }
-    $form_state->set('#page_title', $page_title);
+    $form_state->set('page_title', $page_title);
 
     $view->cacheSet();
   }

core/modules/views_ui/src/Form/Ajax/ViewsFormBase.php

@@ -164,7 +164,7 @@ public function getForm(ViewStorageInterface $view, $display_id, $js) {
       $response->addCommand(new CloseModalDialogCommand());
       $response->addCommand(new Ajax\ShowButtonsCommand(!empty($view->changed)));
       $response->addCommand(new Ajax\TriggerPreviewCommand());
-      if ($page_title = $form_state->get('#page_title')) {
+      if ($page_title = $form_state->get('page_title')) {
         $response->addCommand(new Ajax\ReplaceTitleCommand($page_title));
       }
     }