bug #2379 Fixed the order of update events in AJAX edits (javiereguiluz)

This PR was merged into the 1.x branch.

Discussion
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Fixed the order of update events in AJAX edits

As explained in #2296, the order of events is not exactly the same when editing an entity using a normal form or via an Ajax event. So let's tweak slightly the wrong Ajax order.

Commits
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4829cbc Fixed the order of update enves in AJAX edits

src/Controller/AdminController.php

@@ -417,9 +417,9 @@ protected function updateEntityProperty($entity, $property, $value)
             throw new \RuntimeException(sprintf('The "%s" property of the "%s" entity is not writable.', $property, $entityConfig['name']));
         }
 
-        $this->dispatch(EasyAdminEvents::PRE_UPDATE, array('entity' => $entity, 'newValue' => $value));
-
         $this->get('easy_admin.property_accessor')->setValue($entity, $property, $value);
+
+        $this->dispatch(EasyAdminEvents::PRE_UPDATE, array('entity' => $entity, 'newValue' => $value));
         $this->executeDynamicMethod('preUpdate<EntityName>Entity', array($entity, true));
 
         $this->em->persist($entity);