diff --git a/lib/Doctrine/ORM/UnitOfWork.php b/lib/Doctrine/ORM/UnitOfWork.php
index 49b3fcd349e..bf821cb6885 100644
--- a/lib/Doctrine/ORM/UnitOfWork.php
+++ b/lib/Doctrine/ORM/UnitOfWork.php
@@ -390,7 +390,7 @@ private function computeScheduleInsertsChangeSets()
      */
     private function computeSingleEntityChangeSet($entity)
     {
-        if ( ! $this->isInIdentityMap($entity) ) {
+        if ( $this->getEntityState($entity) !== self::STATE_MANAGED) {
             throw new \InvalidArgumentException("Entity has to be managed for single computation " . self::objToStr($entity));
         }
 
diff --git a/tests/Doctrine/Tests/ORM/Functional/BasicFunctionalTest.php b/tests/Doctrine/Tests/ORM/Functional/BasicFunctionalTest.php
index 3955387e001..695e10c559f 100644
--- a/tests/Doctrine/Tests/ORM/Functional/BasicFunctionalTest.php
+++ b/tests/Doctrine/Tests/ORM/Functional/BasicFunctionalTest.php
@@ -1141,6 +1141,21 @@ public function testFlushSingleAndNoCascade()
         $this->_em->flush($user);
     }
 
+    /**
+     * @group DDC-720
+     * @group DDC-1612
+     */
+    public function testFlushSingleNewEntity()
+    {
+        $user = new CmsUser;
+        $user->name = 'Dominik';
+        $user->username = 'domnikl';
+        $user->status = 'developer';
+
+        $this->_em->persist($user);
+        $this->_em->flush($user);
+    }
+
     /**
      * @group DDC-720
      */