Issue #3498389 by nidhish, bramdriesen, huangweiqiu: conflict with editor note module

src/Services/NotificationsWidgetService.php

@@ -132,7 +132,7 @@ class NotificationsWidgetService implements NotificationsWidgetServiceInterface
     $excludeBundles = explode(',', (string) $excludeList);
 
     $entityUrl = $message['content_link'];
-    if ($entityUrl === '[entity:url]') {
+    if ($entityUrl === '[entity:url]' && $entity->hasLinkTemplate('canonical')) {
       $entityUrl = $entity->toUrl()->toString();
     }