diff --git a/tests/Doctrine/Tests/ORM/Functional/StandardEntityPersisterTest.php b/tests/Doctrine/Tests/ORM/Functional/StandardEntityPersisterTest.php
index 8fc708d87..2807be4e6 100644
--- a/tests/Doctrine/Tests/ORM/Functional/StandardEntityPersisterTest.php
+++ b/tests/Doctrine/Tests/ORM/Functional/StandardEntityPersisterTest.php
@@ -2,9 +2,11 @@
 
 namespace Doctrine\Tests\ORM\Functional;
 
-use Doctrine\Tests\Models\ECommerce\ECommerceCart;
-use Doctrine\Tests\Models\ECommerce\ECommerceCustomer;
-use Doctrine\Tests\Models\ECommerce\ECommerceProduct;
+use Doctrine\Tests\Models\ECommerce\ECommerceCart,
+    Doctrine\Tests\Models\ECommerce\ECommerceCategory,
+    Doctrine\Tests\Models\ECommerce\ECommerceCustomer,
+    Doctrine\Tests\Models\ECommerce\ECommerceProduct;
+    
 use Doctrine\ORM\Mapping\AssociationMapping;
 
 require_once __DIR__ . '/../../TestInit.php';
@@ -40,4 +42,37 @@ class StandardEntityPersisterTest extends \Doctrine\Tests\OrmFunctionalTestCase
         $persister->load(array('customer_id' => $customer->getId()), $newCart);
         $this->assertEquals('Credit card', $newCart->getPayment());
     }
+    
+    /**
+     * Ticket #2478 from Damon Jones (dljones)
+     */
+    public function testAddPersistRetrieve()
+    {
+        $category = new ECommerceCategory();
+        $category->setName('Eletronics');
+        
+        $product = new ECommerceProduct();
+        $product->setName('MP3 Player Foo');
+        $category->addProduct($product);
+        
+        $product2 = new ECommerceProduct();
+        $product2->setName('MP3 Player Bar');
+        $category->addProduct($product2);
+        
+        $this->_em->persist($category);
+        $this->_em->flush();
+        
+        // He reported that using $this->_em->clear(); after flush fixes the problem.
+        // It should work out of the box. That's what we are testing.
+        
+        $q = $this->_em->createQuery('
+            SELECT c, p 
+              FROM Doctrine\Tests\Models\ECommerce\ECommerceCategory c 
+              LEFT JOIN c.products p
+        ');
+        $res = $q->getResult();
+        
+        $this->assertEquals(1, count($res));
+        $this->assertEquals(2, count($res[0]->getProducts()));
+    }
 }