Enum type not correctly detected in DQL query result

[janlanger]

Consider this setup:

#[ORM\Entity]
class ProductCountry extends Entity
{

	#[ORM\Id]
	#[ORM\GeneratedValue]
	#[ORM\Column]
	private ?int $id = null;

	#[ORM\Column]
	#[Set(visibility: 'private')]
	private Country $country;
}

enum Country: string
{
    case CZE = 'cze';
    //....
}

when doing DQL to country from this entity

public function getUsedCountriesInTravelProducts(): array
{
	$query = $this->entityManager->createQueryBuilder()
		->select('pc.country')
		->from(ProductCountry::class, 'pc')
		// .. some conditions
		->addGroupBy('pc.country')
		->getQuery();
	return array_map(static fn (array $result): Country => $result['country'], $query->getResult());
}

phpstan reports error Anonymous function should return Country but returns string but in reality, $result['country'] is properly hydrated to enum

[ondrejmirtes]

/cc @arnaud-lb The type inference should expect enums in the #[ORM\Column] :)

[github-actions]

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