Exception subclass can't be unpickled

[youtux]

Bug report

This exception subclass can't be unpickled, but I think it should be able to be unpickled fine:

import pickle

class MyException(Exception):
    def __init__(self, msg, another_arg):
        super().__init__(msg)
        self.another_arg = another_arg

m = MyException("hello", 12)

pickle.loads(pickle.dumps(m))  # error

# Traceback (most recent call last):
#   File "<stdin>", line 1, in <module>
# TypeError: MyException.__init__() missing 1 required positional argument: 'another_arg'

Discovered in celery/celery#6990

Your environment

• CPython versions tested on: python 3.10.8
• Operating system and architecture: MacOS 12.6, Intel

[hauntsaninja]

Duplicate of #76877