Cannot override var in context's namespaces via merge-opts

[zampino]

version

 borkdude/sci {:mvn/version "0.2.6"}

platform

Mac

java 16.0.2 2021-07-20
Java(TM) SE Runtime Environment (build 16.0.2+7-67)
Java HotSpot(TM) 64-Bit Server VM (build 16.0.2+7-67, mixed mode, sharing)

problem

sci.core/merge-opts doesn't seem to merge (values referenced by) vars correctly for namespace mappings defined in sci.core/init when trying to override an existing var. The order of the params passed to merge-with here below might be wrong:

https://github.com/babashka/sci/blob/master/src/sci/impl/opts.cljc#L17-L22

repro

(ns repro
  (:require [sci.core :as sci])

(def C (atom (sci/init {:namespaces {'n {'foo 1}}})))
(swap! C sci/merge-opts {:namespaces {'n {'foo 2}}})
(sci/eval-form @C 'n/foo)

expected behavior

The new var should be picked up.