hash-set example is sorted

[jonadem]

It seems that in § http://www.braveclojure.com/do-things/#2_8__Sets

for the example with :

(hash-set 1 1 3 1 2)

The clojure result is

; => #{1 3 2}

as we might expected and not

; => #{1 2 3}

as written in the document

[mwfogleman]

Come to think of it, when I run this on tryclj.com, I get this error: java.lang.IllegalArgumentException: Duplicate key: 1