Issue #3224754: [Schemata Integration] Releationship field enhancer schemas are not applied

src/Normalizer/SchemaFieldDefinitionNormalizer.php

@@ -5,13 +5,20 @@ namespace Drupal\jsonapi_extras\Normalizer;
 use Drupal\Component\Utility\NestedArray;
 use Drupal\Core\Field\FieldDefinitionInterface;
 use Drupal\jsonapi\ResourceType\ResourceTypeRepositoryInterface;
+use Drupal\json_schema_api\Normalizer\FieldDefinitionNormalizer;
 use Drupal\jsonapi_extras\ResourceType\ConfigurableResourceType;
-use Drupal\schemata_json_schema\Normalizer\jsonapi\FieldDefinitionNormalizer as SchemataJsonSchemaFieldDefinitionNormalizer;
 
 /**
  * Applies field enhancer schema changes to field schema.
  */
-class SchemaFieldDefinitionNormalizer extends SchemataJsonSchemaFieldDefinitionNormalizer {
+class SchemaFieldDefinitionNormalizer extends FieldDefinitionNormalizer {
+
+  /**
+   * The formats that the Normalizer can handle.
+   *
+   * @var array
+   */
+  protected $format = 'schema_json';
 
   /**
    * The JSON:API resource type repository.
@@ -52,7 +59,7 @@ class SchemaFieldDefinitionNormalizer extends SchemataJsonSchemaFieldDefinitionN
     if (!$enhancer) {
       return $normalized;
     }
-    $parents = ['properties', 'attributes', 'properties', $field_name];
+    $parents = ['properties', $field_name];
     $original_field_schema = NestedArray::getValue($normalized, $parents);
     $to_copy = ['title', 'description'];
     $field_schema = array_merge(