Fix the support for enum types in the ResultSetMappingBuilder

lib/Doctrine/ORM/Query/ResultSetMappingBuilder.php

@@ -154,6 +154,11 @@ protected function addAllClassFields($class, $alias, $columnAliasMap = [])
             }
 
             $this->addFieldResult($alias, $columnAlias, $propertyName);
+
+            $enumType = $classMetadata->getFieldMapping($propertyName)['enumType'] ?? null;
+            if (! empty($enumType)) {
+                $this->addEnumResult($columnAlias, $enumType);
+            }
         }
 
         foreach ($classMetadata->associationMappings as $associationMapping) {

tests/Doctrine/Tests/ORM/Functional/Ticket/GH11017/GH11017Entity.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\GH11017;
+
+use Doctrine\ORM\Mapping as ORM;
+
+/**
+ * @ORM\Entity
+ */
+class GH11017Entity
+{
+    /**
+     * @ORM\Id
+     * @ORM\GeneratedValue
+     * @ORM\Column(type="integer")
+     *
+     * @var ?int
+     */
+    public $id;
+
+    /**
+     * @ORM\Column(type="string", enumType=GH11017Enum::class)
+     *
+     * @var GH11017Enum
+     */
+    public $field;
+}

tests/Doctrine/Tests/ORM/Functional/Ticket/GH11017/GH11017Enum.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\GH11017;
+
+enum GH11017Enum: string
+{
+    case FIRST  = 'first';
+    case SECOND = 'second';
+}

tests/Doctrine/Tests/ORM/Functional/Ticket/GH11017/GH11017Test.php

@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\GH11017;
+
+use Doctrine\ORM\AbstractQuery;
+use Doctrine\ORM\Query\ResultSetMappingBuilder;
+use Doctrine\Tests\OrmFunctionalTestCase;
+
+use function sprintf;
+
+/**
+ * @requires PHP 8.1
+ */
+class GH11017Test extends OrmFunctionalTestCase
+{
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->setUpEntitySchema([
+            GH11017Entity::class,
+        ]);
+    }
+
+    public function testPostPersistListenerUpdatingObjectFieldWhileOtherInsertPending(): void
+    {
+        $entity1        = new GH11017Entity();
+        $entity1->field = GH11017Enum::FIRST;
+        $this->_em->persist($entity1);
+
+        $this->_em->flush();
+        $this->_em->clear();
+
+        $rsm = new ResultSetMappingBuilder($this->_em, ResultSetMappingBuilder::COLUMN_RENAMING_INCREMENT);
+        $rsm->addRootEntityFromClassMetadata(GH11017Entity::class, 'e');
+
+        $tableName = $this->_em->getClassMetadata(GH11017Entity::class)->getTableName();
+        $sql       = sprintf('SELECT %s FROM %s e WHERE id = :id', $rsm->generateSelectClause(), $tableName);
+
+        $query = $this->_em->createNativeQuery($sql, $rsm)
+            ->setParameter('id', $entity1->id);
+
+        $entity1Reloaded = $query->getSingleResult(AbstractQuery::HYDRATE_ARRAY);
+        self::assertNotNull($entity1Reloaded);
+        self::assertSame($entity1->field, $entity1Reloaded['field']);
+    }
+}