Issue #11004: Repair edge case in deque.count().
(Reviewed by Georg Brandl.)
Also made similar changes to deque.reverse() though this wasn't
strictly necessary (the edge case cannot occur with two pointers
moving to meet in the middle). Making the change in reverse()
was more a matter of future-proofing.
diff --git a/Misc/NEWS b/Misc/NEWS
index 07f493a..5655205 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -16,6 +16,8 @@
Library
-------
+- Issue #11004: Repaired edge case in deque.count().
+
- Issue #10974: IDLE no longer crashes if its recent files list includes files
with non-ASCII characters in their path names.