add reproducer

lib/Doctrine/ORM/Proxy/ProxyFactory.php

@@ -314,11 +314,10 @@ private function generateSkippedProperties(ClassMetadata $class): string
  {
  $skippedProperties = ['__isCloning' => true];
  $identifiers = array_flip($class->getIdentifierFieldNames());
+ $filter = ReflectionProperty::IS_PUBLIC | ReflectionProperty::IS_PROTECTED | ReflectionProperty::IS_PRIVATE;
+ $reflector = $class->getReflectionClass();
 
- $filter = ReflectionProperty::IS_PUBLIC | ReflectionProperty::IS_PROTECTED | ReflectionProperty::IS_PRIVATE;
- $reflector = $class->getReflectionClass();
-
- do {
+ while ($reflector) {
  foreach ($reflector->getProperties($filter) as $property) {
  $name = $property->getName();
 
@@ -330,8 +329,10 @@ private function generateSkippedProperties(ClassMetadata $class): string
 
  $skippedProperties[$prefix . $name] = true;
  }
- $filter = ReflectionProperty::IS_PRIVATE;
- } while ($reflector = $reflector->getParentClass());
+
+ $filter = ReflectionProperty::IS_PRIVATE;
+ $reflector = $reflector->getParentClass();
+ }
 
  uksort($skippedProperties, 'strnatcmp');
 

tests/Doctrine/Tests/Models/GH10336/GH10336Entity.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\Models\GH10336;
+
+use Doctrine\ORM\Mapping as ORM;
+
+/**
+ * @ORM\Entity
+ * @ORM\Table(name="gh10336_entities")
+ */
+class GH10336Entity
+{
+ /**
+ * @ORM\Id
+ * @ORM\Column(type="integer")
+ * @ORM\GeneratedValue
+ */
+ public ?int $id = null;
+
+ /**
+ * @ORM\ManyToOne(targetEntity="GH10336Relation")
+ * @ORM\JoinColumn(name="relation_id", referencedColumnName="id", nullable=true)
+ */
+ public ?GH10336Relation $relation = null;
+}

tests/Doctrine/Tests/Models/GH10336/GH10336Relation.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\Models\GH10336;
+
+use Doctrine\ORM\Mapping as ORM;
+
+/**
+ * @ORM\Entity
+ * @ORM\Table(name="gh10336_relations")
+ */
+class GH10336Relation
+{
+ /**
+ * @ORM\Id
+ * @ORM\Column(type="integer")
+ * @ORM\GeneratedValue
+ */
+ public ?int $id = null;
+
+ /**
+ * @ORM\Column(type="string")
+ */
+ public string $value;
+}

tests/Doctrine/Tests/ORM/Functional/Ticket/GH10336Test.php

@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket;
+
+use Doctrine\Tests\Models\GH10336\GH10336Entity;
+use Doctrine\Tests\Models\GH10336\GH10336Relation;
+use Doctrine\Tests\OrmFunctionalTestCase;
+
+/**
+ * @requires PHP 7.4
+ */
+final class GH10336Test extends OrmFunctionalTestCase
+{
+ public function setUp(): void
+ {
+ parent::setUp();
+
+ $this->createSchemaForModels(
+ GH10336Entity::class,
+ GH10336Relation::class
+ );
+ }
+
+ public function testCanAccessRelationPropertyAfterClear(): void
+ {
+ $relation = new GH10336Relation();
+ $relation->value = 'foo';
+ $entity = new GH10336Entity();
+ $entity->relation = $relation;
+
+ $this->_em->persist($entity);
+ $this->_em->persist($relation);
+ $this->_em->flush();
+ $this->_em->clear();
+
+ $entity = $this->_em->find(GH10336Entity::class, 1);
+
+ $this->_em->clear();
+
+ $this->assertSame('foo', $entity->relation->value);
+ }
+}