diff --git a/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php b/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php
index 5164004..1f83a23 100644
--- a/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php
+++ b/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php
@@ -2602,6 +2602,9 @@ protected function isBaseTableTranslatable() {
 
   /**
    * Act on saving a view.
+   *
+   * @param array $orginal_display
+   *   The display settings, of the original entity.
    */
   public function postSaveView(array $orginal_display) {
   }
diff --git a/core/modules/views/src/Plugin/views/display/Page.php b/core/modules/views/src/Plugin/views/display/Page.php
index 732fc47..dff61ec 100644
--- a/core/modules/views/src/Plugin/views/display/Page.php
+++ b/core/modules/views/src/Plugin/views/display/Page.php
@@ -501,6 +501,11 @@ public function postSaveView(array $original_display) {
       'tab_options' => [],
     ];
 
+    $original_display += [
+      'menu' => [],
+      'tab_options' => [],
+    ];
+
     if ($this->display['display_options']['menu'] != $original_display['display_options']['menu']) {
       $route_rebuild = TRUE;
     }
diff --git a/core/modules/views/src/Plugin/views/display/PathPluginBase.php b/core/modules/views/src/Plugin/views/display/PathPluginBase.php
index f8a935b..c8802a4 100644
--- a/core/modules/views/src/Plugin/views/display/PathPluginBase.php
+++ b/core/modules/views/src/Plugin/views/display/PathPluginBase.php
@@ -527,6 +527,13 @@ public function postSaveView(array $original_display) {
       'access' => [],
     ];
 
+    $original_display += [
+      'path' => '',
+      'route_name' => '',
+      'arguments' => [],
+      'access' => [],
+    ];
+
     if ($this->display['display_options']['path'] != $original_display['display_options']['path']) {
       $route_rebuild = TRUE;
     }