fix teohanhui comments

Author: Amrouche Hamza

src/Serializer/ItemNormalizer.php

@@ -36,7 +36,12 @@ public function denormalize($data, $class, $format = null, array $context = [])
             try {
                 $context['object_to_populate'] = $this->iriConverter->getItemFromIri($data['id'], $context + ['fetch_data' => false]);
             } catch (InvalidArgumentException $e) {
-                $context['object_to_populate'] = $this->iriConverter->getItemFromIri($this->iriConverter->getIriFromResourceClass($context['resource_class']).'/'.$data['id'], $context + ['fetch_data' => false]);
+                foreach ($this->propertyNameCollectionFactory->create($context['resource_class'], $context) as $propertyName) {
+                    if (true === $this->propertyMetadataFactory->create($context['resource_class'], $propertyName)->isIdentifier()) {
+                        $identifier = $propertyName;
+                    }
+                }
+                $context['object_to_populate'] = $this->iriConverter->getItemFromIri($this->iriConverter->getIriFromResourceClass($context['resource_class']).'/'.$data[$identifier], $context + ['fetch_data' => false]);
             }
         }