$revision_metadata_keys = [
'revision_user' => 'revision_user',
'revision_created' => 'revision_created',
- 'revision_log_message' => 'revision_log_message'
+ 'revision_log_message' => 'revision_log_message',
+ 'revision_default' => 'revision_default',
];
$entity_type->set('revision_metadata_keys', $revision_metadata_keys);