Clojurians Log v2

Hi, I am using reagent with functional compiler with re-frame , and when using a subscribe all the elements re-render, even thought the value itself didn't change. Imagine a selection, where every item decides if it is the one selected. Only two items should re-render, the one swapping to true, and the one swapping to false. Unfortunately when using subscribe it re-renders all children. Any ideas? Example code, re-rendering all components, based on react profiler

(def x (atom 1))

(defn something-inner [value]
   [:div (str value)])
            
(defn something [selected-number]
 [:<>
  (map 
   (fn [a] ^{:key a}[something-inner (= selected-number a)])
   (range 10))])

(defn view []
  (let [selected-number x]
     [:div 
      [something @selected-number]
      [:div {:on-click #(reset! x (rand-int 10))}
        "Choose number"]]))