Enums are considered as changes when Entity is fetched through query.

tests/Doctrine/Tests/Models/Enums/AssocToCardWithDefault.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\Models\Enums;
+
+use Doctrine\ORM\Mapping\Column;
+use Doctrine\ORM\Mapping\Entity;
+use Doctrine\ORM\Mapping\Id;
+use Doctrine\ORM\Mapping\ManyToOne;
+
+#[Entity]
+class AssocToCardWithDefault
+{
+    #[Id, Column]
+    public string $id;
+
+    #[ManyToOne]
+    public CardWithDefault $card;
+}

tests/Doctrine/Tests/ORM/Functional/EnumTest.php

@@ -12,6 +12,7 @@
 use Doctrine\ORM\Tools\SchemaTool;
 use Doctrine\Tests\Models\DataTransferObjects\DtoWithArrayOfEnums;
 use Doctrine\Tests\Models\DataTransferObjects\DtoWithEnum;
+use Doctrine\Tests\Models\Enums\AssocToCardWithDefault;
 use Doctrine\Tests\Models\Enums\Card;
 use Doctrine\Tests\Models\Enums\CardWithDefault;
 use Doctrine\Tests\Models\Enums\CardWithNullable;
@@ -430,4 +431,28 @@ public function testEnumWithDefault(): void
 
         self::assertSame(Suit::Hearts, $card->suit);
     }
+
+    public function testEnumAreNotConsideredAsChanges(): void
+    {
+        $this->setUpEntitySchema([CardWithDefault::class, AssocToCardWithDefault::class]);
+
+        $table  = $this->_em->getClassMetadata(CardWithDefault::class)->getTableName();
+        $cardId = uniqid('', true);
+
+        $this->_em->getConnection()->insert($table, ['id' => $cardId]);
+
+        $tableAssoc = $this->_em->getClassMetadata(AssocToCardWithDefault::class)->getTableName();
+        $assocId    = uniqid('', true);
+        $this->_em->getConnection()->insert($tableAssoc, ['id' => $assocId, 'card_id' => $cardId]);
+
+        $qb = $this->_em->createQueryBuilder();
+        $qb->select('assoc')->from(AssocToCardWithDefault::class, 'assoc');
+        $qb->join('assoc.card', 'card')->addSelect('card');
+        $assoc = $qb->getQuery()->getSingleResult();
+
+        $card = $this->_em->find(CardWithDefault::class, $cardId);
+
+        $this->_em->getUnitOfWork()->computeChangeSets();
+        static::assertEquals([], $this->_em->getUnitOfWork()->getEntityChangeSet($card));
+    }
 }