I quite disagree. If there is no sorting, then the order of the cites in the citation should be taken as the intended order given by the author. It would be incorrect to change that order, and the reason for that is (1) cites may have affixes where the order matters, or (2) even if there are no affixes, the cites are presented in order of relevance to the argument.
What is incorrect here is an ambiguity in the spec, not the test.