Welcome! Please see the About page for a little more info on how this works.
To reproduce:
clojure -J-Dclojure.server.jvm="{:port 5555 :accept clojure.core.server/io-prepl}" Clojure 1.12.0 user=>
then
nc localhost 5555 *repl* {:tag :ret, :val "false", :ns "user", :ms 0, :form "*repl*"}
Logged as https://clojure.atlassian.net/browse/CLJ-2897 - thanks!