anchor.diff:                                            M0),
   
                       ok = riakc_pb_socket:update_type(Pid,
  -                                     {<<"map_bucket">>, <<"42bucket">>}, <<"key">>,
  +                                     {<<"map_bucket">>, <<"bucket">>}, <<"key">>,
                                        riakc_map:to_op(M1)),
                       {ok, M2} = riakc_pb_socket:fetch_type(Pid, {<<"map_bucket">>, <<"bucket">>}, <<"key">>),
                       L1 = riakc_map:fetch({<<"set">>, set}, M2),
  
positive.code:                                                      {<<"map_bucket">>, <<"bucket">>},
                                                       <<"key">>,
                                       riakc_map:to_op(
                                         {<<"register">>, register},
                                         fun(R) ->
                                                 riakc_register:set(
                                                   term_to_binary({"barney", "rubble", StoneInRussian}),
                                                   R)
                                         end, riakc_map:new())),
                      {ok, M0} = fetch_type(Pid, {<<"map_bucket">>, <<"bucket">>}, <<"key">>),
                      R0 = riakc_map:fetch({<<"register">>, register}, M0),
                      ?assertEqual(binary_to_term(R0), {"barney", "rubble", StoneInRussian}),
  
negative.code:                                                      {<<"map_bucket">>, <<"bucket">>},
                                                       <<"key">>,
                                       riakc_map:to_op(
                                         riakc_map:update(
                                         {<<"register">>, register},
                                         fun(R) ->
                                                 riakc_register:set(
                                                   term_to_binary({"barney", "rubble", StoneInThai}),
                                                   R)
                                         end, M0))),
  
                      {ok, M1} = fetch_type(Pid, {<<"map_bucket">>, <<"bucket">>}, <<"key">>),
                      R1 = riakc_map:fetch({<<"register">>, register}, M1),
  