diff --git a/core/modules/file/file.module b/core/modules/file/file.module
index a6fc3f6..d0bfe07 100644
--- a/core/modules/file/file.module
+++ b/core/modules/file/file.module
@@ -1220,7 +1220,6 @@ function file_managed_file_save_upload($element, FormStateInterface $form_state)
 function template_preprocess_file_managed_file(&$variables) {
   $element = $variables['element'];
 
-  $variables['attributes'] = [];
   if (isset($element['#id'])) {
     $variables['attributes']['id'] = $element['#id'];
   }
diff --git a/core/modules/system/src/Tests/Form/FormTest.php b/core/modules/system/src/Tests/Form/FormTest.php
index 4b8d042..08d0866 100644
--- a/core/modules/system/src/Tests/Form/FormTest.php
+++ b/core/modules/system/src/Tests/Form/FormTest.php
@@ -607,7 +607,7 @@ public function testDisabledElements() {
     // All the elements should be marked as disabled, including the ones below
     // the disabled container.
     $actual_count = count($disabled_elements);
-    $expected_count = 42;
+    $expected_count = 43;
     $this->assertEqual($actual_count, $expected_count, SafeMarkup::format('Found @actual elements with disabled property (expected @expected).', [
       '@actual' => count($disabled_elements),
       '@expected' => $expected_count,