[Serializer] regression with attribute serialization

[bendavies]

Symfony version(s) affected

6.4.7

Description

There appears to be a regression in v6.4.7 with serializing "nested" attributes with a property path.

How to reproduce

Given a serialization config like:

App\Entity\Foo:
  attributes:
    bar.id:
      serialized_name: bar_id
      groups: ['read']

where Bar is a relation on Foo, bar_id is not serialized in in v6.4.7, but was in v6.4.6.

Possible Solution

No response

Additional Context

#52917 seems suspect to me.

[HypeMC]

Yep, this was introduced in #52917, before the changes the ObjectNormalizer would access the property using the property access component:

symfony/src/Symfony/Component/Serializer/Normalizer/ObjectNormalizer.php

Lines 140 to 147 in 5f7ee32

	protected function getAttributeValue(object $object, string $attribute, ?string $format = null, array $context = []): mixed
	{
	$mapping = $this->classDiscriminatorResolver?->getMappingForMappedObject($object);
	return $attribute === $mapping?->getTypeProperty()
	? $mapping
	: $this->propertyAccessor->getValue($object, $attribute);
	}

But now the isAllowedAttribute() method filters out bar.id, so it never reaches that code.

cc @mtarld

[mxr576]

Probably we are experiencing the same issue on apigee/apigee-client-php as well.