Make sure email annotation is only set when actually available in LDAP resource

Author: Tjeerd

src/AppBundle/Ldap/Normalizer.php

@@ -21,15 +21,19 @@ public function denormalizeUsers(array $users)
         for ($i = 0; $i < $users['count']; $i++) {
             $user = $users[$i];
 
+            $annotations = [];
+
+            if (isset($user['mail'][0])) {
+                $annotations['email'] = $user['mail'][0];
+            }
+
             $result[] = new User(
                 null,
                 $user['dn'],
                 $user['givenname'][0],
                 $user['sn'][0],
                 $user['uid'][0],
-                [
-                    'email' => isset($user['mail'][0]) ? $user['mail'][0] : ''
-                ]
+                $annotations
             );
         }