=== modified file 'Objects/setobject.c'
--- Objects/setobject.c	2008-02-12 19:05:36 +0000
+++ Objects/setobject.c	2008-05-14 19:51:34 +0000
@@ -94,7 +94,9 @@
 	else {
 		if (entry->hash == hash) {
 			startkey = entry->key;
+			Py_INCREF(startkey);
 			cmp = PyObject_RichCompareBool(startkey, key, Py_EQ);
+			Py_DECREF(startkey);
 			if (cmp < 0)
 				return NULL;
 			if (table == so->table && entry->key == startkey) {
@@ -125,7 +127,9 @@
 			break;
 		if (entry->hash == hash && entry->key != dummy) {
 			startkey = entry->key;
+			Py_INCREF(startkey);
 			cmp = PyObject_RichCompareBool(startkey, key, Py_EQ);
+			Py_DECREF(startkey);
 			if (cmp < 0)
 				return NULL;
 			if (table == so->table && entry->key == startkey) {