Possible bug with Edit Spy predicates window with 8.1.9

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24

Pushed a fix for that. Only happens in mode(-,?), so not very likely to cause problems.

?- listing(file_search_path, [source(true)]).
...
% From /home/jan/src/swipl-devel/linux/home/boot/toplevel.pl:59
user:file_search_path(app_data, PrologAppData) :-
    (   current_prolog_flag(windows, true)
    ->  catch(win_folder(appdata, AppData), _, fail),
        atom_concat(AppData, '/SWI-Prolog', PrologAppData),
        (   exists_directory(PrologAppData)
        ->  true
        ;   catch(make_directory(PrologAppData), _, fail)
        )
    ;   catch(expand_file_name('~/lib/swipl', [PrologAppData]), _, fail)
    ).
user:file_search_path(app_preferences, Preferences) :-
    (   current_prolog_flag(windows, true)
    ->  Preferences = app_data('.')
    ;   catch(expand_file_name(~, [UserHome]), _, fail)
    ->  Preferences = UserHome
    ).
user:file_search_path(user_profile, app_preferences('.')).
...

The option source(true) is quite helpful to find the actual definition of multifile predicates and where the clauses come from/

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