partial __getstate__ wrong (?)

[albertz]

Bug report

Bug description:

The native _functools.partial type __getstate__ will return its __dict__. That will not include func, args or keywords.

This is different from the pure Python implementation of functools.partial (link), where it will return the slots, i.e. the state includes func, args or keywords.

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux