(deftest k.result-type-at-beginning.1

(iter (:for i below 2)
(:collect i at beginning result-type vector))

#(1 0))

(deftest k.result-type-at-beginning.2

(iter (:for i below 2)

(:collect i at beginning result-type list))
(1 0))

(deftest k.result-type-at-beginning.2a

(iter (:for i below 2)

           (:collect i at beginning))
(1 0))

(deftest k.result-type-at-beginning.3
         (iter (:for c in-string "ab")
           (:collect c at beginning result-type string))
"ba")

Did I miss something?