def restore_last_revision!(id)
      record = restore_last_revision(id)
      if record
        record.store_revision do
          save_restorable_associations(record, revisionable_associations)
        end
      end
      return record
    end
def restore_last_revision!(id)
      record = restore_last_revision(id)
      if record
        record.store_revision do
          save_restorable_associations(record, revisionable_associations)
        end
      end
      return record
    end
Load the last revision for a record with the specified id and save it to the database. You should
 always use this method to save a revision if it has associations.