fix(supann) Fix handling of cursus annee attribute empty year

SupAnn specifies it’s allowed to put a letter without year in
 supannEtuCursusAnnee, and FD was not allowing it due to errors in
 masks.

issue #6034

supann/personal/supann/class_SupannCursusAnneeAttribute.inc

@@ -28,7 +28,7 @@ class SupannCursusAnneeAttribute extends SupannPrefixedSelectAttribute
       new SelectAttribute('', '', $ldapName.'_prefix', $required),
       new SelectAttribute('', '', $ldapName.'_content', FALSE)
     ];
-    CompositeAttribute::__construct($description, $ldapName, $attributes, '/^{SUPANN}(.)(\\d+)$/', '{SUPANN}%s%d', $acl, $label);
+    CompositeAttribute::__construct($description, $ldapName, $attributes, '/^{SUPANN}(.)(\\d*)$/', '{SUPANN}%s%s', $acl, $label);
     $this->setLinearRendering(TRUE);
 
     $this->attributes[0]->setChoices(
@@ -51,6 +51,7 @@ class SupannCursusAnneeAttribute extends SupannPrefixedSelectAttribute
     $this->supannUpdateSelect();
     $this->setRequired($required);
   }
+
   protected function supannUpdateSelect ()
   {
     $prefix = $this->attributes[0]->getValue();