Message 394164 - Python tracker

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Content 
The issue is fixed by:

commit 615069eb08494d089bf24e43547fbc482ed699b8
Author: Victor Stinner <vstinner@python.org>
Date:   Fri May 21 19:19:54 2021 +0200

    bpo-44184: Fix subtype_dealloc() for freed type (GH-26274)
    
    Fix a crash at Python exit when a deallocator function removes the
    last strong reference to a heap type.
    
    Don't read type memory after calling basedealloc() since
    basedealloc() can deallocate the type and free its memory.
    
    _PyMem_IsPtrFreed() argument is now constant.