Issue #3385760: compareNodeRevisions ignore the node parameter

src/Controller/NodeRevisionController.php

@@ -55,13 +55,10 @@ class NodeRevisionController extends PluginRevisionController {
       throw new AccessDeniedHttpException();
     }
     $storage = $this->entityTypeManager()->getStorage('node');
-    $route_match = \Drupal::routeMatch();
     $left_revision = $storage->loadRevision($left_revision);
     $right_revision = $storage->loadRevision($right_revision);
-    if ($left_revision instanceof ContentEntityInterface && $right_revision instanceof ContentEntityInterface) {
-      return $this->compareEntityRevisions($route_match, $left_revision, $right_revision, $filter);
-    }
-    return [];
+    $build = $this->compareEntityRevisions($node, $left_revision, $right_revision, $filter);
+    return $build;
   }
 
 }