Пришлось изменить версию SignInResDtoV1 на SignInResDtoV2 из-за непродуманного кода приложения.

src/auth/auth.controller.ts

@@ -27,7 +27,7 @@ import {
 	UpdateTokenReqDto,
 	UpdateTokenResDto,
 	SignInResDtoV0,
-	SignInResDtoV1,
+	SignInResDtoV2,
 } from "../dto/auth.dto";
 import { ResultDto } from "../utility/validation/class-validator.interceptor";
 import { ScheduleService } from "../schedule/schedule.service";
@@ -43,7 +43,7 @@ export class AuthController {
 
 	@ApiExtraModels(SignInReqDto)
 	@ApiExtraModels(SignInResDtoV0)
-	@ApiExtraModels(SignInResDtoV1)
+	@ApiExtraModels(SignInResDtoV2)
 	@ApiOperation({ summary: "Авторизация по логину и паролю", tags: ["auth"] })
 	@ApiBody({ schema: refs(SignInReqDto)[0] })
 	@ApiOkResponse({
@@ -52,18 +52,18 @@ export class AuthController {
 	})
 	@ApiOkResponse({
 		description: "Авторизация прошла успешно",
-		schema: refs(SignInResDtoV1)[0],
+		schema: refs(SignInResDtoV2)[0],
 	})
 	@ApiUnauthorizedResponse({
 		description: "Некорректное имя пользователя или пароль",
 	})
-	@ResultDto([SignInResDtoV0, SignInResDtoV1])
+	@ResultDto([SignInResDtoV0, SignInResDtoV2])
 	@HttpCode(HttpStatus.OK)
 	@Post("sign-in")
 	async signIn(
 		@Body() signInDto: SignInReqDto,
 		@ResponseVersion() responseVersion: number,
-	): Promise<SignInResDtoV1 | SignInResDtoV0> {
+	): Promise<SignInResDtoV2 | SignInResDtoV0> {
 		const data = await this.authService.signIn(signInDto);
 		return SignInResDto.stripVersion(data, responseVersion);
 	}

src/dto/auth.dto.ts

@@ -36,7 +36,7 @@ export class SignInResDtoV0 {
 	accessToken: string;
 }
 
-export class SignInResDtoV1 extends SignInResDtoV0 {
+export class SignInResDtoV2 extends SignInResDtoV0 {
 	@ApiProperty({
 		example: "ИС-214/23",
 		description: "Группа",
@@ -46,15 +46,16 @@ export class SignInResDtoV1 extends SignInResDtoV0 {
 	group: string;
 }
 
-export class SignInResDto extends SignInResDtoV1 {
+export class SignInResDto extends SignInResDtoV2 {
 	public static stripVersion(
 		instance: SignInResDto,
 		version: number,
-	): SignInResDtoV0 | SignInResDtoV1 {
+	): SignInResDtoV0 | SignInResDtoV2 {
 		switch (version) {
 			default:
 				return instance;
-			case 0: {
+			case 0:
+			case 1: {
 				return plainToClass(SignInResDtoV0, instanceToPlain(instance), {
 					excludeExtraneousValues: true,
 				});