Bug: Row hydration fails when changed filter parameters using many to many relation with index

tests/Tests/ORM/Functional/Ticket/SwitchContextWithFilterAndIndexedRelation/Category.php

@@ -0,0 +1,43 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\SwitchContextWithFilterAndIndexedRelation;
+
+use Doctrine\ORM\Mapping as ORM;
+
+/**
+ * @ORM\Entity
+ * @ORM\Table(name="Category_Master")
+ */
+class Category
+{
+    /**
+     * @ORM\Id
+     * @ORM\Column(type="integer")
+     * @ORM\GeneratedValue(strategy="AUTO")
+     *
+     * @var int
+     */
+    public $id;
+
+    /**
+     * @ORM\Column(type="string")
+     *
+     * @var string
+     */
+    public $name;
+
+    /**
+     * @ORM\Column(type="string")
+     *
+     * @var string
+     */
+    public $type;
+
+    public function __construct(string $name, string $type)
+    {
+        $this->name = $name;
+        $this->type = $type;
+    }
+}

tests/Tests/ORM/Functional/Ticket/SwitchContextWithFilterAndIndexedRelation/CategoryTypeSQLFilter.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\SwitchContextWithFilterAndIndexedRelation;
+
+use Doctrine\ORM\Mapping\ClassMetadata;
+use Doctrine\ORM\Query\Filter\SQLFilter;
+
+use function sprintf;
+
+class CategoryTypeSQLFilter extends SQLFilter
+{
+    public function addFilterConstraint(ClassMetadata $targetEntity, $targetTableAlias): string
+    {
+        if ($targetEntity->getName() === Category::class) {
+            return sprintf('%s.%s = %s', $targetTableAlias, $targetEntity->fieldMappings['type']['fieldName'], $this->getParameter('type'));
+        }
+
+        return '';
+    }
+}

tests/Tests/ORM/Functional/Ticket/SwitchContextWithFilterAndIndexedRelation/ChangeFiltersTest.php

@@ -0,0 +1,60 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\SwitchContextWithFilterAndIndexedRelation;
+
+use Doctrine\Tests\OrmFunctionalTestCase;
+
+final class ChangeFiltersTest extends OrmFunctionalTestCase
+{
+    private const COMPANY_A = 'A';
+    private const CAT_BAR   = 'bar';
+    private const CAT_FOO   = 'foo';
+
+    public function setUp(): void
+    {
+        parent::setUp();
+
+        $this->setUpEntitySchema([
+            Company::class,
+            Category::class,
+        ]);
+    }
+
+    private function prepareData(): void
+    {
+        $cat1     = new Category('cat1', self::CAT_FOO);
+        $cat2     = new Category('cat2', self::CAT_BAR);
+        $companyA = new Company(self::COMPANY_A, [$cat1, $cat2]);
+
+        $this->_em->persist($cat1);
+        $this->_em->persist($cat2);
+        $this->_em->persist($companyA);
+        $this->_em->flush();
+        $this->_em->clear();
+    }
+
+    public function testIndexAliasUpdatedWithUpdatedFilter(): void
+    {
+        $this->prepareData();
+
+        $company = $this->_em->getRepository(Company::class)->findOneBy([]);
+
+        self::assertCount(2, $company->categories);
+        self::assertEquals([self::CAT_FOO, self::CAT_BAR], $company->categories->map(static function (Category $c): string {
+            return $c->type;
+        })->getValues());
+
+        $this->_em->clear();
+        $this->_em->getConfiguration()->addFilter(CategoryTypeSQLFilter::class, CategoryTypeSQLFilter::class);
+        $this->_em->getFilters()->enable(CategoryTypeSQLFilter::class)->setParameter('type', self::CAT_FOO);
+
+        $company = $this->_em->getRepository(Company::class)->findOneBy([]);
+
+        self::assertCount(1, $company->categories);
+        self::assertEquals([self::CAT_FOO], $company->categories->map(static function (Category $c): string {
+            return $c->type;
+        })->getValues());
+    }
+}

tests/Tests/ORM/Functional/Ticket/SwitchContextWithFilterAndIndexedRelation/Company.php

@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\SwitchContextWithFilterAndIndexedRelation;
+
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
+use Doctrine\ORM\Mapping as ORM;
+
+/**
+ * @ORM\Entity
+ * @ORM\Table(name="Company_Master")
+ */
+class Company
+{
+    /**
+     * @ORM\Id
+     * @ORM\Column(type="integer")
+     * @ORM\GeneratedValue(strategy="AUTO")
+     *
+     * @var int
+     */
+    public $id;
+
+    /**
+     * @ORM\Column(type="string")
+     *
+     * @var string
+     */
+    public $name;
+
+    /**
+     * @ORM\ManyToMany(targetEntity="Category", fetch="EAGER", indexBy="type")
+     *
+     * @var Collection<int, Category>
+     */
+    public $categories;
+
+    /** @param Category[] $categories */
+    public function __construct(string $name, array $categories)
+    {
+        $this->name       = $name;
+        $this->categories = new ArrayCollection($categories);
+    }
+}