Résultat à l'écran: évite d'ajouter plusieurs fois les paramètres fixés

src/app/formulaire/definition/form-compute-fixedvar.ts

@@ -54,6 +54,7 @@ export class FormComputeFixedVar extends FormCompute {
     protected reaffectResultComponents() {
         const nub: Nub = this._formBase.currentNub;
         const computedParam: NgParameter = this.getComputedParameter();
+        this.formResult.resetResults(); // to avoid adding fixed parameters more than once (see below)
         this.formResult.addFixedParameters();
         const varParam: NgParameter = this.getVariatedParameter();
 

src/app/formulaire/definition/form-compute.ts

@@ -27,7 +27,8 @@ export abstract class FormCompute implements Observer {
 
     /**
      * Copies current Nub result into result components for display on page.
-     * Should be called every time the Nub result changes
+     * Should be called every time the Nub result changes.
+     * Must be idempotent.
      */
     protected abstract reaffectResultComponents();