anchor.diff:          RevList = atts_since_arg(
               length("GET " ++ FullUrl ++ " HTTP/1.1\r\n") +
               length("&atts_since=") + 6,  % +6 = % encoded [ and ]
  -            PAs, []),
  +            PAs, MaxLen, []),
           [{"atts_since", ?JSON_ENCODE(RevList)} | QueryArgs1]
       end.
   
  
positive.code:     JsonRevs = ?b2l(?JSON_ENCODE(couch_doc:revs_to_strs(Revs))),
      options_to_query_args(Rest, [{"open_revs", JsonRevs} | Acc]).
  
  
  -define(MAX_URL_LEN, 7000).
  
  atts_since_arg(_UrlLen, [], Acc) ->
      lists:reverse(Acc);
  atts_since_arg(UrlLen, [PA | Rest], Acc) ->
      RevStr = couch_doc:rev_to_str(PA),
      NewUrlLen = case Rest of
      [] ->
  
negative.code:     ]).
  
  -define(MAX_WAIT, 5 * 60 * 1000).
  
  -define(MAX_URL_LEN, 7000).
  -define(MIN_URL_LEN, 200).
  
  db_uri(#httpdb{url = Url}) ->
      couch_util:url_strip_password(Url);
  