diff --git a/lib/Doctrine/ORM/UnitOfWork.php b/lib/Doctrine/ORM/UnitOfWork.php
index 80915155d..2a458a3ce 100644
--- a/lib/Doctrine/ORM/UnitOfWork.php
+++ b/lib/Doctrine/ORM/UnitOfWork.php
@@ -1684,6 +1684,7 @@ class UnitOfWork implements PropertyChangedListener
             case self::STATE_REMOVED:
                 // Entity becomes managed again
                 unset($this->entityDeletions[$oid]);
+                $this->addToIdentityMap($entity);
 
                 $this->entityStates[$oid] = self::STATE_MANAGED;
                 break;
diff --git a/tests/Doctrine/Tests/ORM/UnitOfWorkTest.php b/tests/Doctrine/Tests/ORM/UnitOfWorkTest.php
index df7256e44..d855c7817 100644
--- a/tests/Doctrine/Tests/ORM/UnitOfWorkTest.php
+++ b/tests/Doctrine/Tests/ORM/UnitOfWorkTest.php
@@ -302,6 +302,25 @@ class UnitOfWorkTest extends \Doctrine\Tests\OrmTestCase
         $this->_unitOfWork->computeChangeSet($metadata, $user);
     }
 
+    /**
+     * @group DDC-3619
+     * @group 1338
+     */
+    public function testRemovedAndRePersistedEntitiesAreInTheIdentityMapAndAreNotGarbageCollected()
+    {
+        $entity     = new ForumUser();
+        $entity->id = 123;
+
+        $this->_unitOfWork->registerManaged($entity, array('id' => 123), array());
+        $this->assertTrue($this->_unitOfWork->isInIdentityMap($entity));
+
+        $this->_unitOfWork->remove($entity);
+        $this->assertFalse($this->_unitOfWork->isInIdentityMap($entity));
+
+        $this->_unitOfWork->persist($entity);
+        $this->assertTrue($this->_unitOfWork->isInIdentityMap($entity));
+    }
+
     /**
      * Data Provider
      *