I have multiple kinds of entities within a single table inheritance. The UniqueEntityValidator fails in that scenario as it uses get_class($entity). It instead should use the class on which it is defined.

Example:

/**
 * @ORM\InheritanceType("SINGLE_TABLE")
 * @ORM\DiscriminatorColumn(name="discr", type="string", length=15)
 * @UniqueEntity(fields={"email"})
 */
class User {
    /** @ORM\Column(type="string") */
    private $email;
}

class Collaborator extends User {}

Validating the Collaborator will now only check for other Collaborators with the same email.

I'm using symfony 2.7.10.