fill is a value

tests/flattener_dicos/51redefine_fill/result/00-base.xml

@@ -1,10 +1,6 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <creole>
-  <constraints>
-    <fill name="concat" target="creole.general.mode_conteneur_actif">
-      <param hidden="True" name="valeur" type="string">non</param>
-    </fill>
-  </constraints>
+  <constraints/>
   <family doc="" name="creole">
     <family doc="general" name="general">
       <property>normal</property>
@@ -16,6 +12,9 @@
         <property>hidden</property>
         <property>mandatory</property>
         <property>normal</property>
+        <value name="concat" type="calculation">
+          <param hidden="True" name="valeur" type="string">non</param>
+        </value>
       </variable>
     </family>
     <separators/>