Clojurians Log v2

I'm a bit confused by malli.core/unparse. I'm finding that literal data equal to the result of malli.core/parse cannot be unparsed. Is that intentional?

(def int-or-string [:orn [:int :int] [:str :string]])

(malli.core/parse int-or-string 1) ;; -> [:int 1]

(malli.core/unparse int-or-string [:int 1]) ;=> :malli.core/invalid

(->> 1
     (malli.core/parse int-or-string)
     (malli.core/unparse int-or-string)) ;; => 1