fix(GroupProfile): restore custom group-profile attribute extensibility

GroupProfile lost its extensibility after 6.6.0 (#365): because it is not marked
x-okta-extensible, ObjectSerializer strips custom group-profile attributes (those
added via the Schemas API, e.g. an org-chart id) on both serialize and
deserialize, so they never reach Okta on writes and are dropped on reads.

Add GroupProfile to the force-extensible list in scripts/fixSpec.cjs — matching
UserProfile and OktaUserGroupProfile, which remain extensible — and regenerate.
This restores the typed index signature and `static readonly isExtensible = true`
so custom attributes round-trip again.

Refs #238, okta/okta-sdk-java#1642.

Author: eleonoratennyson

scripts/fixSpec.cjs

@@ -505,6 +505,7 @@ function fixExtensibleSchemas(spec) {
   // Schemas to add `x-okta-extensible`
   const schemasToForceExtensible = [
     'UserProfile',
+    'GroupProfile',
   ];
 
   for (const schemaKey in spec.components.schemas) {

src/generated/models/GroupProfile.js

@@ -75,3 +75,4 @@ GroupProfile.attributeTypeMap = [
     'format': ''
   }
 ];
+GroupProfile.isExtensible = true;

src/types/generated/models/GroupProfile.d.ts

@@ -0,0 +1,46 @@
+/*!
+ * Copyright (c) 2017-present, Okta, Inc. and/or its affiliates. All rights reserved.
+ * The Okta software accompanied by this notice is provided pursuant to the Apache License, Version 2.0 (the "License.")
+ *
+ * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *
+ * See the License for the specific language governing permissions and limitations under the License.
+ */
+
+import { expect } from 'chai';
+import { ObjectSerializer } from '../../src/generated/models/ObjectSerializer';
+
+// Regression test for: custom GroupProfile attributes stripped by the serializer.
+// Root cause: GroupProfile was not marked x-okta-extensible, so ObjectSerializer
+// discarded schema-extension attributes (those added via the Schemas API) on
+// both serialize and deserialize, matching the behavior of UserProfile and
+// OktaUserGroupProfile which remain extensible.
+
+describe('GroupProfile serialization', () => {
+  it('preserves custom (schema-extension) attributes during serialization', () => {
+    const input = {
+      name: 'West Coast Users',
+      description: 'All West Coast users',
+      customAttribute: 'custom-value',
+    };
+
+    const serialized = ObjectSerializer.serialize(input, 'GroupProfile', '');
+
+    expect(serialized).to.have.property('name', 'West Coast Users');
+    expect(serialized).to.have.property('customAttribute', 'custom-value');
+  });
+
+  it('preserves custom (schema-extension) attributes during deserialization', () => {
+    const raw = {
+      name: 'West Coast Users',
+      customAttribute: 'custom-value',
+    };
+
+    const deserialized = ObjectSerializer.deserialize(raw, 'GroupProfile', '');
+
+    expect(deserialized).to.have.property('customAttribute', 'custom-value');
+  });
+});