At the top of core.cljs, line 20:
(def ^{:dyanmic true:jsdoc ["@define {string}"]}target "default")
I'm not sure there are any consequences so far, since a search doesn't show target being rebound anywhere.
N/A
thanks https://github.com/clojure/clojurescript/commit/8785fa9c9ff38c0fcebc32757c077070397018b7