Has anyone encountered and issue with letfn and :optimizations :none?

I seem to get an error when I attempt to compile

(letfn [(foo [] (bar)) (bar [] 1)] (foo))

(For example.)

It’ll complain about bar not existing. However, when I compile with :optimizations other than :none it’s all good.

Having an issue with a module always loading at startup, rather than waiting for a cljs.loader/load ... call to fire. AFAICT, no load calls are made anywhere, but it's still loading.