Cannot cast ChatMember to any subclass

[MasterGroosha]

• Operating System: Manjaro KDE Edition
• Python Version: 3.9
• aiogram version: 2.14.2

I tried to get type of ChatMember subclass (e.g. ChatMemberAdministrator, ChatMemberLeft etc.), however this code fails:

import asyncio
import logging
from aiogram import Bot, Dispatcher, types

bot = Bot(token="BOT_TOKEN")
dp = Dispatcher(bot)
logging.basicConfig(level=logging.INFO)

@dp.chat_member_handler()
async def chat_member_handler(update: types.ChatMemberUpdated):
    print(f"[{update.from_user.id}] {type(update.old_chat_member.resolve())} -> {type(update.new_chat_member.resolve())}")

async def main():
    await dp.start_polling(allowed_updates=types.AllowedUpdates.all())

asyncio.run(main())

Exception:

ERROR:asyncio:Task exception was never retrieved
future: <Task finished name='Task-8' coro=<Dispatcher._process_polling_updates() done, defined at %PROJECTDIR%/venv/lib/python3.9/site-packages/aiogram/dispatcher/dispatcher.py:409> exception=ValueError("Can't find `ChatMember` class for status `None`")>
Traceback (most recent call last):
  File "%PROJECTDIR%/venv/lib/python3.9/site-packages/aiogram/dispatcher/dispatcher.py", line 417, in _process_polling_updates
    for responses in itertools.chain.from_iterable(await self.process_updates(updates, fast)):
  File "%PROJECTDIR%/venv/lib/python3.9/site-packages/aiogram/dispatcher/dispatcher.py", line 238, in process_updates
    return await asyncio.gather(*tasks)
  File "%PROJECTDIR%/venv/lib/python3.9/site-packages/aiogram/dispatcher/handler.py", line 116, in notify
    response = await handler_obj.handler(*args, **partial_data)
  File "%PROJECTDIR%/venv/lib/python3.9/site-packages/aiogram/dispatcher/dispatcher.py", line 309, in process_update
    return await self.chat_member_handlers.notify(update.chat_member)
  File "%PROJECTDIR%/venv/lib/python3.9/site-packages/aiogram/dispatcher/handler.py", line 116, in notify
    response = await handler_obj.handler(*args, **partial_data)
  File "%PROJECTDIR%/bot.py", line 12, in chat_member_handler
    print(f"[{update.from_user.id}] {type(update.old_chat_member.resolve())} -> {type(update.new_chat_member.resolve())}")
  File "%PROJECTDIR%/venv/lib/python3.9/site-packages/aiogram/types/chat_member.py", line 80, in resolve
    raise ValueError(f"Can't find `ChatMember` class for status `{status}`")
ValueError: Can't find `ChatMember` class for status `None`

Steps to Reproduce

1. Run the code above (don't forget to put your own token)
2. Add bot to a group and make it admin
3. Restrict any chat member (e.g. revoke any permission from them)