Image avatars should be seen as entity dependency

Image avatars should be seen as entity dependency as it is an entity attached to the user entity. This is a feature request but with a very high priority as this is a very much used attribute of the account entity.

I am currently checking why this is not working. The part to push this to a deploy plan already works by following hook.

/**
 * Implements hook_entity_dependenies().
 */
function user_entity_dependencies($entity, $entity_type) {
  if ($entity_type == 'user') {
    $dependencies = array();
    // The user has a 'file' dependency through the picture property.
    $dependencies[] = array('type' => 'file', 'id' => $entity->picture->fid);

    // You could try it the normal way, however the utility function would need to change as well.
    //$entity->picture = $entity->picture->fid;
    //entity_dependency_add($dependencies, $entity, 'file', array('picture'));

    return $dependencies;
  }
}

The patch will arrive later on, however I could use a couple of pointers to help me figure out how to add the knowledge of the file dependency to the deploy action itself.