Fix cloning entities

Author: nicolas-grekas

psalm-baseline.xml

@@ -1502,7 +1502,9 @@
       <code><![CDATA[__wakeup]]></code>
     </UndefinedInterfaceMethod>
     <UndefinedMethod>
-      <code><![CDATA[self::createLazyGhost($initializer, $skippedProperties)]]></code>
+      <code><![CDATA[$proxy = self::createLazyGhost(static function (InternalProxy $object) use ($initializer, $identifier): void {
+                $initializer($object, $identifier);
+            }, $skippedProperties);]]></code>
     </UndefinedMethod>
     <UnresolvableInclude>
       <code><![CDATA[require $fileName]]></code>

src/Proxy/ProxyFactory.php

@@ -360,9 +360,8 @@ private function createInitializer(ClassMetadata $classMetadata, EntityPersister
      */
     private function createLazyInitializer(ClassMetadata $classMetadata, EntityPersister $entityPersister, IdentifierFlattener $identifierFlattener): Closure
     {
-        return static function (InternalProxy $proxy) use ($entityPersister, $classMetadata, $identifierFlattener): void {
-            $identifier = $classMetadata->getIdentifierValues($proxy);
-            $original   = $entityPersister->loadById($identifier);
+        return static function (InternalProxy $proxy, array $identifier) use ($entityPersister, $classMetadata, $identifierFlattener): void {
+            $original = $entityPersister->loadById($identifier);
 
             if ($original === null) {
                 throw EntityNotFoundException::fromClassNameAndIdentifier(
@@ -375,10 +374,11 @@ private function createLazyInitializer(ClassMetadata $classMetadata, EntityPersi
                 return;
             }
 
-            $class = $entityPersister->getClassMetadata();
+            $class       = $entityPersister->getClassMetadata();
+            $identifiers = array_flip($class->getIdentifierFieldNames());
 
             foreach ($class->getReflectionProperties() as $property) {
-                if (! $class->hasField($property->name) && ! $class->hasAssociation($property->name)) {
+                if (isset($identifiers[$property->name]) || ! $class->hasField($property->name) && ! $class->hasAssociation($property->name)) {
                     continue;
                 }
 
@@ -468,7 +468,9 @@ private function getProxyFactory(string $className): Closure
         $identifierFields = array_intersect_key($class->getReflectionProperties(), $identifiers);
 
         $proxyFactory = Closure::bind(static function (array $identifier) use ($initializer, $skippedProperties, $identifierFields, $className): InternalProxy {
-            $proxy = self::createLazyGhost($initializer, $skippedProperties);
+            $proxy = self::createLazyGhost(static function (InternalProxy $object) use ($initializer, $identifier): void {
+                $initializer($object, $identifier);
+            }, $skippedProperties);
 
             foreach ($identifierFields as $idField => $reflector) {
                 if (! isset($identifier[$idField])) {

tests/Tests/ORM/Functional/ProxiesLikeEntitiesTest.php

@@ -58,7 +58,7 @@ protected function setUp(): void
     public function testPersistUpdate(): void
     {
         // Considering case (a)
-        $proxy = $this->_em->getProxyFactory()->getProxy(CmsUser::class, ['id' => 123]);
+        $proxy = $this->_em->getProxyFactory()->getProxy(CmsUser::class, ['id' => $this->user->getId()]);
 
         $proxy->id       = null;
         $proxy->username = 'ocra';