Index: Objects/abstract.c
===================================================================
--- Objects/abstract.c	(revision 47225)
+++ Objects/abstract.c	(working copy)
@@ -1458,7 +1458,13 @@
 
 	/* Fill the tuple. */
 	for (j = 0; ; ++j) {
+		/* Untrack the candidate tuple so that the tuple doesn't show up
+			in gc.get_referrers() until its done being built
+		*/  
+		_PyObject_GC_UNTRACK(result)
 		PyObject *item = PyIter_Next(it);
+		_PyObject_GC_TRACK(result);
+
 		if (item == NULL) {
 			if (PyErr_Occurred())
 				goto Fail;