Fix bug in adding new alements to set and array

    arbitrary_schedules = []

    ordered_schedules = set()

    f = generate_restricted_integer_compositions(redundancy, positions, min, max)

    for i in f:

        arbitrary_schedules.add(i)

    gen_rics = generate_restricted_integer_compositions(redundancy, positions, min, max)

    for ric in gen_rics:

        arbitrary_schedules.append(ric)

    if not is_order_ascending:

        for i in arbitrary_schedules:

            ordered_schedules.append(itertools.permutations(i))

        for ric in arbitrary_schedules:

            ordered_schedules.add(itertools.permutations(ric))

        return list(ordered_schedules)

    else:

        return arbitrary_schedules

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