Fix bug in Cloisons related method allParamsAreFixed()

src/app/components/generic-calculator/calculator.component.ts

@@ -515,7 +515,14 @@ export class GenericCalculatorComponent implements OnInit, DoCheck, AfterViewChe
     private allParamsAreFixed() {
         let ret = true;
         for (const p of this._formulaire.currentNub.parameterIterator) {
-            ret = ret && (! p.hasMultipleValues);
+            if (p.valueMode === ParamValueMode.LINK) {
+                ret = ret && (! p.hasMultipleValues);
+            } else {
+                // avoid calling hasMultipleValues here, because changing parameter mode in GUI
+                // switches valueMode before setting min/max/step or valuesList, and iterator
+                // checker fails to count values that do not exist yet
+                ret = ret && (! [ ParamValueMode.LISTE, ParamValueMode.MINMAX ].includes(p.valueMode));
+            }
         }
         return ret;
     }