openapi json exception

[Jsonvot]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

When using class view, the generated openapi json mapping is out of order。

Code snippet

from sanic import Sanic
from sanic.blueprints import Blueprint
from sanic.request import Request
from sanic.response import json
from sanic.views import HTTPMethodView

app = Sanic(__name__)
app.config.update({
    'OAS_UI_DEFAULT': 'swagger'
})


class DeleteMixin:
    async def delete(self, request: Request):
        pass


class PutMixin:
    async def put(self, request: Request):
        pass


class TestView(HTTPMethodView, DeleteMixin, PutMixin):
    middleware = []

    async def get(self, request: Request):
        return json({'code': 200})


class UserView(HTTPMethodView, DeleteMixin, PutMixin):
    middleware = []

    async def get(self, request: Request):
        return json({'code': 200})


test_bp = Blueprint('test_bp')
test_bp.add_route(TestView.as_view(), '/test-api/test')

user_bp = Blueprint('user_bp')
user_bp.add_route(UserView.as_view(), '/api/user')

app.blueprint(Blueprint.group(*[test_bp, user_bp]))

Expected Behavior

No response

How do you run Sanic?

Sanic CLI

Operating System

Linux

Sanic Version

23.12.0

Additional context

No response