Does anyone else also get this fatal PHP error after the upgrade to the latest 2.3 beta2 ?

( ! ) Catchable fatal error: Argument 2 passed to Symfony\Bridge\Doctrine\Form\ChoiceList\ORMQueryBuilderLoader::construct() must be an instance of Doctrine\ORM\EntityManagerInterface, instance of EntityManager5195385bdc081_546a8d27f194334ee012bfe64f629947b07e4919__CG\Doctrine\ORM\EntityManager given, called in C:\RunnableSSD\XAMPP\htdocs\LFS\vendor\symfony\symfony\src\Symfony\Bridge\Doctrine\Form\Type\EntityType.php on line 33 and defined in C:\RunnableSSD\XAMPP\htdocs\LFS\vendor\symfony\symfony\src\Symfony\Bridge\Doctrine\Form\ChoiceList\ORMQueryBuilderLoader.php on line 43
Call Stack
Time Memory Function Location
1 0.0018 138016 {main}( ) ..\app_dev.php:0
2 0.0209 759864 Symfony\Component\HttpKernel\Kernel->handle( ) ..\app_dev.php:32
3 0.8212 7808112 Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel->handle( ) ..\Kernel.php:190
4 0.8215 7809280 Symfony\Component\HttpKernel\HttpKernel->handle( ) ..\ContainerAwareHttpKernel.php:63
5 0.8215 7809312 Symfony\Component\HttpKernel\HttpKernel->handleRaw( ) ..\HttpKernel.php:61
6 2.2558 11218464 call_user_func_array ( ) ..\HttpKernel.php:117
7 2.2558 11218904 My\MainBundle\Controller\TerminController->newAction( ) ..\HttpKernel.php:117
8 2.2823 11305664 Symfony\Bundle\FrameworkBundle\Controller\Controller->createForm( ) ..\TerminController.php:87
9 2.2904 11397744 Symfony\Component\Form\FormFactory->create( ) ..\Controller.php:163
10 2.3608 12474888 Symfony\Component\Form\FormBuilder->getForm( ) ..\FormFactory.php:39
11 2.3608 12474984 Symfony\Component\Form\FormBuilder->resolveChildren( ) ..\FormBuilder.php:218
12 2.3608 12475072 Symfony\Component\Form\FormBuilder->create( ) ..\FormBuilder.php:270
13 2.3609 12475192 Symfony\Component\Form\FormFactory->createNamedBuilder( ) ..\FormBuilder.php:106
14 2.3674 12566576 Symfony\Component\Form\ResolvedFormType->createBuilder( ) ..\FormFactory.php:87
15 2.3683 12587192 Symfony\Component\OptionsResolver\OptionsResolver->resolve( ) ..\ResolvedFormType.php:109