Merge branch '4.4' into 5.1

* 4.4:
  also reset id readers
  Fix LDAP pagination

Author: fabpot

Form/Type/DoctrineType.php

@@ -244,6 +244,7 @@ public function getParent()
 
     public function reset()
     {
+        $this->idReaders = [];
         $this->entityLoaders = [];
     }