diff --git a/core/modules/field/tests/modules/field_test/config/schema/field_test.schema.yml b/core/modules/field/tests/modules/field_test/config/schema/field_test.schema.yml
index 707c50a..533e41d 100644
--- a/core/modules/field/tests/modules/field_test/config/schema/field_test.schema.yml
+++ b/core/modules/field/tests/modules/field_test/config/schema/field_test.schema.yml
@@ -46,10 +46,14 @@ field.test_field.field_settings:
     test_field_setting:
       type: string
       label: 'Test field setting'
-    test_cached_data:
-      type: boolean
-      label: 'Test cached data'
 
 field.test_field.value:
   type: sequence
   label: 'Default value'
+  sequence:
+    - type: mapping
+      label: 'Default'
+      mapping:
+        value:
+          type: label
+          label: 'Value'
diff --git a/core/modules/field/tests/modules/field_test/src/Plugin/Field/FieldType/TestItem.php b/core/modules/field/tests/modules/field_test/src/Plugin/Field/FieldType/TestItem.php
index ba79e7d..456f911 100644
--- a/core/modules/field/tests/modules/field_test/src/Plugin/Field/FieldType/TestItem.php
+++ b/core/modules/field/tests/modules/field_test/src/Plugin/Field/FieldType/TestItem.php
@@ -42,7 +42,6 @@ public static function defaultStorageSettings() {
   public static function defaultFieldSettings() {
     return array(
       'test_field_setting' => 'dummy test string',
-      'test_cached_data' => FALSE,
     ) + parent::defaultFieldSettings();
   }