Registration Failed after rewriting only User Entity

[BlackScorp]

Q	A
Bug?	yes
New Feature?	no
Community Bundle Version	2.0.x-dev
Sulu Version	2.5.x-dev
Browser Version	Browser name and version

Actual Behavior

When you follow this tutorial and overwrite ONLY the user entity
https://docs.sulu.io/en/2.4/cookbook/extend-entities.html
everything works fine until you register. when you create a new account you will see an error:

Expected value of type "App\Entity\User" for association field "Sulu\Bundle\SecurityBundle\Entity\UserRole#$user", got "Sulu\Bundle\SecurityBundle\Entity\User" instead.

it seems like the default user role still use the Sulu User class instead of the overwritte one

Expected Behavior

User Role should use the model defined in sulu_security.yaml

Steps to Reproduce

Code Example is here: https://github.com/OpenTribes/Framework/

Possible Solutions

in the class vendor/sulu/community-bundle/Form/Type/RegistrationType.php

in configureOptions there is a default UserEntity used.

in order to fix this behavoir i replaced empty_data with

    public function configureOptions(OptionsResolver $resolver): void
    {

        $resolver->setDefaults(
            [
                'data_class' => UserInterface::class,
                'validation_groups' => ['registration'],
                'empty_data' => function (FormInterface $form) {
                    $user = new \App\Entity\User();
                    $user->setContact(new Contact());

                    return $user;
                },
            ]
        );
    }

and this way the registration works. i assume a UserEntityFactory could be use here somehow to get the overwritten entity