fix #17258 - use model class only if it is generated (#17490)

* fix  #16797 and #15796 spring child constructor missing parent params

* root cause and update the DefaultCodegen.java to add missing property when with multi inheritance

* rollback SpringCodegen.java

* update samples

* rollback with master cause #16992 fixed this issue too

* still using orignal design

* catchup master

* catchup master

* catchup master

* fix

* add tests

---------

Co-authored-by: dabdirb <dabdirb@gmail.com>

samples/client/petstore/php/OpenAPIClient-php/docs/Api/FakeApi.md

@@ -13,6 +13,7 @@ All URIs are relative to http://petstore.swagger.io:80/v2, except if the operati
 | [**fakeOuterStringSerialize()**](FakeApi.md#fakeOuterStringSerialize) | **POST** /fake/outer/string |  |
 | [**fakePropertyEnumIntegerSerialize()**](FakeApi.md#fakePropertyEnumIntegerSerialize) | **POST** /fake/property/enum-int |  |
 | [**getParameterNameMapping()**](FakeApi.md#getParameterNameMapping) | **GET** /fake/parameter-name-mapping | parameter name mapping test |
+| [**testAdditionalPropertiesReference()**](FakeApi.md#testAdditionalPropertiesReference) | **POST** /fake/additionalProperties-reference | test referenced additionalProperties |
 | [**testBodyWithBinary()**](FakeApi.md#testBodyWithBinary) | **PUT** /fake/body-with-binary |  |
 | [**testBodyWithFileSchema()**](FakeApi.md#testBodyWithFileSchema) | **PUT** /fake/body-with-file-schema |  |
 | [**testBodyWithQueryParams()**](FakeApi.md#testBodyWithQueryParams) | **PUT** /fake/body-with-query-params |  |
@@ -530,6 +531,61 @@ No authorization required
 [[Back to Model list]](../../README.md#models)
 [[Back to README]](../../README.md)
 
+## `testAdditionalPropertiesReference()`
+
+```php
+testAdditionalPropertiesReference($request_body)
+```
+
+test referenced additionalProperties
+
+
+
+### Example
+
+```php
+<?php
+require_once(__DIR__ . '/vendor/autoload.php');
+
+
+
+$apiInstance = new OpenAPI\Client\Api\FakeApi(
+    // If you want use custom http client, pass your client which implements `GuzzleHttp\ClientInterface`.
+    // This is optional, `GuzzleHttp\Client` will be used as default.
+    new GuzzleHttp\Client()
+);
+$request_body = NULL; // array<string,mixed> | request body
+
+try {
+    $apiInstance->testAdditionalPropertiesReference($request_body);
+} catch (Exception $e) {
+    echo 'Exception when calling FakeApi->testAdditionalPropertiesReference: ', $e->getMessage(), PHP_EOL;
+}
+```
+
+### Parameters
+
+| Name | Type | Description  | Notes |
+| ------------- | ------------- | ------------- | ------------- |
+| **request_body** | [**array<string,mixed>**](../Model/mixed.md)| request body | |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: `application/json`
+- **Accept**: Not defined
+
+[[Back to top]](#) [[Back to API list]](../../README.md#endpoints)
+[[Back to Model list]](../../README.md#models)
+[[Back to README]](../../README.md)
+
 ## `testBodyWithBinary()`
 
 ```php