diff -u b/core/modules/views/views.post_update.php b/core/modules/views/views.post_update.php
--- b/core/modules/views/views.post_update.php
+++ b/core/modules/views/views.post_update.php
@@ -253,28 +253,34 @@
 
   $core_admin_views = [];
 
+  // Find all the core Views with an admin path.
   foreach ($config_factory->listAll('views.view.') as $view_config_name) {
     $view = $config_factory->get($view_config_name);
     if ($view->get('_core')) {
       foreach ($view->get('display') as $display_id => $display) {
-        if (!empty($display['display_options']['path']) && substr($display['display_options']['path'], 0, 6) === 'admin/') {
+        if (!empty($display['display_options']['path']) && strpos($display['display_options']['path'], 'admin/') === 0) {
           $core_admin_views[] = $view_config_name;
         }
       }
     }
   }
 
+  // Change any button labels that are still set to the default 'Apply'.
   foreach ($core_admin_views as $view_config_name) {
+    $save = FALSE;
     $view = $config_factory->getEditable($view_config_name);
     foreach ($view->get('display') as $display_id => $display) {
       if (!empty($display['display_options']['exposed_form']['options']['submit_button'])) {
         if ($display['display_options']['exposed_form']['options']['submit_button'] === 'Apply') {
           $display['display_options']['exposed_form']['options']['submit_button'] = 'Filter';
           $view->set("display.$display_id", $display);
-          $view->save(TRUE);
+          $save = TRUE;
         }
       }
     }
+    if ($save) {
+      $view->save(TRUE);
+    }
   }
 }