[BUG] [TypeScript] Generated TS client sets void return type for 302 Redirects

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?

Description

The generated code for a TypeScript client returns void for 302's

openapi-generator version

6.6.0

OpenAPI declaration file content or url

openapi: 3.0.1
info:
  title: Example API
  version: v1
paths:
  /a:
    get:
      tags:
        - Example
      summary: 302 Found (With Content)
      operationId: a
      responses:
        '302':
          description: Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Schema'
  /b:
    get:
      tags:
        - Example
      summary: 302 Found (Without Content)
      operationId: b
      responses:
        '302':
          description: Found
components:
  schemas:
    Schema:
      type: object
      properties:
        a:
          type: string
      additionalProperties: false

/* tslint:disable */
/* eslint-disable */
/**
 * Example API
 * No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)
 *
 * The version of the OpenAPI document: v1
 * 
 *
 * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
 * https://openapi-generator.tech
 * Do not edit the class manually.
 */


import * as runtime from '../runtime';
import type {
  Schema,
} from '../models';
import {
    SchemaFromJSON,
    SchemaToJSON,
} from '../models';

/**
 * ExampleApi - interface
 * 
 * @export
 * @interface ExampleApiInterface
 */
export interface ExampleApiInterface {
    /**
     * 
     * @summary 302 Found (With Content)
     * @param {*} [options] Override http request option.
     * @throws {RequiredError}
     * @memberof ExampleApiInterface
     */
    aRaw(initOverrides?: RequestInit | runtime.InitOverrideFunction): Promise<runtime.ApiResponse<void>>;

    /**
     * 302 Found (With Content)
     */
    a(initOverrides?: RequestInit | runtime.InitOverrideFunction): Promise<void>;

    /**
     * 
     * @summary 302 Found (Without Content)
     * @param {*} [options] Override http request option.
     * @throws {RequiredError}
     * @memberof ExampleApiInterface
     */
    bRaw(initOverrides?: RequestInit | runtime.InitOverrideFunction): Promise<runtime.ApiResponse<void>>;

    /**
     * 302 Found (Without Content)
     */
    b(initOverrides?: RequestInit | runtime.InitOverrideFunction): Promise<void>;

}

/**
 * 
 */
export class ExampleApi extends runtime.BaseAPI implements ExampleApiInterface {

    /**
     * 302 Found (With Content)
     */
    async aRaw(initOverrides?: RequestInit | runtime.InitOverrideFunction): Promise<runtime.ApiResponse<void>> {
        const queryParameters: any = {};

        const headerParameters: runtime.HTTPHeaders = {};

        const response = await this.request({
            path: `/a`,
            method: 'GET',
            headers: headerParameters,
            query: queryParameters,
        }, initOverrides);

        return new runtime.VoidApiResponse(response);
    }

    /**
     * 302 Found (With Content)
     */
    async a(initOverrides?: RequestInit | runtime.InitOverrideFunction): Promise<void> {
        await this.aRaw(initOverrides);
    }

    /**
     * 302 Found (Without Content)
     */
    async bRaw(initOverrides?: RequestInit | runtime.InitOverrideFunction): Promise<runtime.ApiResponse<void>> {
        const queryParameters: any = {};

        const headerParameters: runtime.HTTPHeaders = {};

        const response = await this.request({
            path: `/b`,
            method: 'GET',
            headers: headerParameters,
            query: queryParameters,
        }, initOverrides);

        return new runtime.VoidApiResponse(response);
    }

    /**
     * 302 Found (Without Content)
     */
    async b(initOverrides?: RequestInit | runtime.InitOverrideFunction): Promise<void> {
        await this.bRaw(initOverrides);
    }

}

Generation Details

Generated via openapi-cli node package that uses openapi-generator behind the scenes with this config:

{
  "$schema": "./node_modules/@openapitools/openapi-generator-cli/config.schema.json",
  "spaces": 2,
  "generator-cli": {
    "version": "6.6.0",
    "generators": {
      "v1": {
        "inputSpec": "test.yaml",
        "generatorName": "typescript-fetch",
        "output": "src/lib/api",
        "additionalProperties": {
          "supportsES6": true,
          "stringEnums": true,
          "withInterfaces": true,
          "enumPropertyNaming": "camelCase",
          "modelPropertyNaming": "camelCase",
          "useSingleRequestParameter": false
        }
      }
    }
  }
}

Steps to reproduce

Install npm

npm init

put the provided spec into a test.yaml file in the same directory as the package.json generated by npm init

npm i -D @openapitools/openapi-generator-cli
npx openapi-generator-cli generate

Start with the provided test.yaml and the typescript-fetch generator configuration, then inspect the generated ExampleApi output for the two 302 responses. Trace how the response schema is represented when generating the client methods. Done means a 302 response with application/json content is not generated as void, while the response without content remains distinguishable.