[issue28737] Document that tp_dealloc handler must call PyObject_GC_UnTrack if Py_TPFLAGS_HAVE_GC is set

[Łukasz Langa]

Łukasz Langa <lukasz at langa.pl> added the comment:


New changeset 193504acf3bfb7cff1edf7f568c2405b857fa1f7 by Miss Islington (bot) in branch '3.9':
bpo-28737: Document when tp_dealloc should call PyObject_GC_UnTrack() (GH-29246) (GH-29248)
https://github.com/python/cpython/commit/193504acf3bfb7cff1edf7f568c2405b857fa1f7


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<https://bugs.python.org/issue28737>
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