Misc/NEWS.d/next/C API/2021-04-28-13-13-07.bpo-43962.9Jzs5X.rst


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_PyInterpreterState_IDIncref() now calls _PyInterpreterState_IDInitref() and
always increments id_refcount. Previously, calling
_xxsubinterpreters.get_current() could create an id_refcount inconsistency
when a _xxsubinterpreters.InterpreterID object was deallocated. Patch by
Victor Stinner.