hotline 177809 fix borrower login when membership label has changed

library/Class/Membership.php

@@ -22,12 +22,10 @@
 
 class MembershipLoader extends Storm_Model_Loader {
 
-
   public function findOrCreate(string $uniq_code,
                                string $label) : Class_Membership {
-    $params = ['code' => $uniq_code ?? 0];
+    $params = ['code' => $uniq_code];
     $membership = Class_Membership::findFirstBy($params) ?? Class_Membership::newInstance($params);
-
     $membership->setLibelle($label);
     return $membership;
   }