[debug python]

assigning __slot__ to a QObject derived class causes:

Python 3.10
Qt 6.3.2 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 11.2.0)
../cpython_src310/Modules/gcmodule.c:2217: visit_validate: Assertion failed: PyObject_GC_Track() object is not valid
Enable tracemalloc to get the memory block allocation traceback

object address  : 0x7f5df9f3d9b0
object refcount : 1
object type     : 0x55b0b3fc0dd0
object type name: Obj
object repr     : 

Fatal Python error: _PyObject_AssertFailed: _PyObject_AssertFailed
Python runtime state: initialized

Current thread 0x00007f5dfa75ec40 (most recent call first):
  File "/home/user/samples/pyside1970.py", line 22 in <module>

Extension modules: shiboken6.Shiboken, PySide6.QtCore (total: 2)
Aborted (core dumped)