Docstrings not preserved in subclasses of QObject

(Apologies if there's another open issue on this, if so I wasn't able to find it)

It appears that, in all versions of PySide6 (but not in PySide2) user docstrings are not preserved in subclasses of QObject.

In [1]: from PySide6.QtCore import QObject
   ...:
   ...: class A:
   ...:     """I'm a docstring"""
   ...:
   ...: class B(QObject):
   ...:     """I'm another docstring"""
   ...:

In [2]: A.__doc__
Out[2]: "I'm a docstring"

In [3]: B.__doc__  # empty

This is problematic, both for interactive help, as well as autogenerated documentation pages.

Thanks!

Python 3.10
Qt 6.4.2 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 11.3.0)
A.__doc__= I'm a docstring
B.__doc__= None

Python 3.10
Qt 5.15.11 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 11.2.0)
A.__doc__= I'm a docstring
B.__doc__= I'm another docstring