Error with debuger and fun's in Erlang R10B-8

[Jakob Skipper]

% This code fails in Erlang R10B8 when debugger is running.
%
% Do the following:
% * Compile this module
% * Run "debugger_fun:test()", output is [yes,no,no,no]
% * Start the debugger "debugger:start" and interpret this module; no 
breakpoints etc. necessary
% * Run "debugger_fun:test()" again, output is now [no,no,no,no]

-module(debugger_fun).
-export([test/0]).


n(N) ->
    lists:map(
      fun(X) when N==X ->
              yes;
         (_) ->
              no
      end,
      [1,2,3,4]
     ).

test() ->
    n(1).


If you replace the "when" clause in the fun with a case expression then 
it works fine.

-- 
Jakob Skipper
Skipper ApS
jakob@REDACTED
+45 5192 4447
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