Although I got the same results in 5.8.1, I actually got different results in 5.6.0 :

001001

Which, would suggest that although the & forced it to sort the results of the function f(0), means that without the &, it behaves consistently (at least for all of the varients that I tried).

In reply to Re: Unexpected difference in whitespace parsing in subroutine calls. by jhourcle
in thread Unexpected difference in whitespace parsing in subroutine calls. by Lexicon

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