def amplify!(user)
      base = self.find_user(user.username)
      return user unless base

      user.extend UserExt
      user.ldap_attributes = base.ldap_attributes

      user.merge!(base)
    end
def amplify!(user)
      base = self.find_user(user.username)
      return user unless base

      user.extend UserExt
      user.ldap_attributes = base.ldap_attributes

      user.merge!(base)
    end
Merges in the authorization information in this authority for the
 given user.

 @param [Aker::User] user the target user

 @return [Aker::User] the input user, modified