Have you seen the relevant reference in RFC3629, page 2? It's explicitly listed there as a feature: "The byte-value lexicographic sorting order of UTF-8 strings is the same as if ordered by character numbers"
Agree that specifying the keys to be ordered >by unicode code points< instead of >lexicographically< would be less ambiguous though.
Agree that specifying the keys to be ordered >by unicode code points< instead of >lexicographically< would be less ambiguous though.