Bouton pour supprimer les anciens messages

module/misc.js

@@ -134,12 +134,12 @@ export class Misc {
     return itemsBy
   }
 
-  static classifyFirst(items, classifier) {
+  static classifyFirst(items, classifier, classified = it => it) {
     let itemsBy = {};
     for (const item of items) {
       const classification = classifier(item);
       if (!itemsBy[classification]) {
-        itemsBy[classification] = item;
+        itemsBy[classification] = classified(item);
       }
     }
     return itemsBy;