I'm curious why the following form evaluates to 2:
(defn foo [& more]
(println "foo(" more " )"))
(defn bar [v]
(apply (first v) (rest v)))
(bar '(foo 1 2))
If the form (bar '(foo 1 2)) extended to, say, (bar '(foo 1 2 3 4)) the
arity exception will be thrown.
The behavior can be reproduced after picking another names for foo and/or
bar functions.
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