From bc13c371e09010ccb97487cd6cdd5ecfb72365cb Mon Sep 17 00:00:00 2001
From: Matthew Wilkes <git@matthewwilkes.name>
Date: Tue, 19 Jun 2018 16:19:30 +0100
Subject: [PATCH] Improve performance of RecordsProxy.__iter__

---
 CHANGES.rst                    | 4 +++-
 plone/registry/recordsproxy.py | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/CHANGES.rst b/CHANGES.rst
index 862a57e..bfb876a 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -14,7 +14,9 @@ New features:
 
 Bug fixes:
 
-- *add item here*
+- Improve performance of RecordsProxy.__iter__ which is now invoked more in
+  core Plone as part of the requireJS configuration
+  [MatthewWilkes]
 
 
 1.1.2 (2016-12-06)
diff --git a/plone/registry/recordsproxy.py b/plone/registry/recordsproxy.py
index 58a541b..06c39ac 100644
--- a/plone/registry/recordsproxy.py
+++ b/plone/registry/recordsproxy.py
@@ -115,7 +115,7 @@ def __iter__(self):
             if '.' not in name:
                 yield name
             else:
-                key = '.'.join(name.split('.')[:-1])
+                key = name.rsplit('.', 1)[0]
                 if key != last:
                     yield key
                     last = key