Prevent a crash with nested scopes, again caused by calling Py_DECREF when the pointer
is still present in the containing structure.
diff --git a/Misc/NEWS b/Misc/NEWS
index 74466d6..c8c4a03 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@
Core and builtins
-----------------
+- Fixed several potential crashes, all caused by specially crafted __del__
+ methods exploiting objects in temporarily inconsistent state.
+
- Issue #2115: Important speedup in setting __slot__ attributes. Also
prevent a possible crash: an Abstract Base Class would try to access a slot
on a registered virtual subclass.