Make Fraction(-1).__hash__() return -2 rather than -1 (see issue 10356).
diff --git a/Misc/NEWS b/Misc/NEWS
index 9a847e4..2887040 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -63,6 +63,9 @@
 Library
 -------
 
+- Fix Fraction.__hash__ so that Fraction.__hash__(-1) is -2.  (See
+  also issue #10356.)
+
 - Issue #4471: Add the IMAP.starttls() method to enable encryption on
   standard IMAP4 connections.  Original patch by Lorenzo M. Catucci.