anchor.diff:  handle_info(timeout, #state{zone_provider={M,F,A}}=State) ->
     error_logger:info_msg("Reloading zone: ~p", [State#state.zone_name]),
     {ok, RRs} = M:F(A),
  +  RRs1 = convert_records_to_lowercase(RRs),
     RRTree = lists:foldr(
       fun(RR, Tree) ->
         Domain = RR#dns_rr.domain,
  
positive.code: 
  code_change(_OldVsn, State, _Extra) ->
    {ok, State}.
  
negative.code:         true ->
            gb_trees:update(Domain, [RR|gb_trees:get(Domain, Tree)], Tree)
         end 
      end, gb_trees:empty(), RRs1),
     {noreply, State#state{rr_tree=RRTree}, 60000}; %% FIXME timeout
  handle_info(_Info, State) ->
     {noreply, State}.
  