error printed using pprint in clojure 1.13.0-alpha1

Question

❯ clj -Sdeps '{:deps {org.clojure/clojure {:mvn/version "1.13.0-alpha1"}}}'
Clojure 1.13.0-alpha1
user=> (clojure.pprint/pprint :foo)
Execution error (ClassCastException) at clojure.pprint.proxy$java.io.Writer$IDeref$PrettyFlush$4923d848/flush (REPL:-1).
class clojure.pprint.proxy$java.io.Writer$IDeref$PrettyFlush$4923d848 cannot be cast to class clojure.pprint.PrettyFlush (clojure.pprint.proxy$java.io.Writer$IDeref$PrettyFlush$4923d848 is in unnamed module of loader 'app'; clojure.pprint.PrettyFlush is in unnamed module of loader clojure.lang.DynamicClassLoader @36a58466)
:foo

reported by djblue in #clojure-dev

Comments

resolved in alpha 2:

❯ clj -Sdeps '{:deps {org.clojure/clojure {:mvn/version "1.13.0-alpha2"}}}'
Clojure 1.13.0-alpha2
user=> (clojure.pprint/pprint :foo)
:foo
nil