allow cycles throught the __dict__ slot to be cleared (closes #1469629)
Patch from Armin, test from me.
diff --git a/Misc/NEWS b/Misc/NEWS
index 89b6471..bbf224b 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -9,6 +9,9 @@
Core and Builtins
-----------------
+- Issue #1469629: Allow cycles through an object's __dict__ slot to be
+ collected. (For example if ``x.__dict__ is x``).
+
- Issue #13521: dict.setdefault() now does only one lookup for the given key,
making it "atomic" for many purposes. Patch by Filip GruszczyĆski.