fix: Lechapt-Calmon: results not reset when changing material select value

refs #596

src/app/formulaire/elements/fieldset.ts

@@ -379,6 +379,7 @@ export class FieldSet extends FormulaireElement implements IProperties {
                                     }
                                 }
                             }
+                            this.parentForm.resetResults();
                         }
                     }
                     break; // switch (data.action)