(def foo/foo 1) works in JVM Clojure and CLJS when you are in namespace foo

[borkdude]

This seems to be intended behavior and SCI should follow it.

https://github.com/clojure/clojure/blob/501348deb1e49736f3c49f2c177bcff947fe3a17/src/jvm/clojure/lang/Compiler.java#L532-L543