From ec032cb739aedca53036cd14297219293963cf98 Mon Sep 17 00:00:00 2001
From: Alexander Ljungberg <aljungberg@wireload.net>
Date: Sat, 13 Feb 2010 23:05:55 -0300
Subject: [PATCH] Performance fix: willChange and didChange for
 CPArrayController's selectionIndexes were sent doubly.

---
 AppKit/CPArrayController.j | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/AppKit/CPArrayController.j b/AppKit/CPArrayController.j
index ed13c1e73..5b7db2a68 100644
--- a/AppKit/CPArrayController.j
+++ b/AppKit/CPArrayController.j
@@ -91,6 +91,16 @@
     return [CPSet setWithObjects:"selectionIndexes"];
 }
 
++ (BOOL)automaticallyNotifiesObserversForKey:(CPString)aKey
+{
+    if (![super automaticallyNotifiesObserversForKey:aKey])
+        return NO;
+    if (aKey === @"selectionIndexes")
+        return NO;
+
+    return YES;
+}
+
 - (id)init
 {
     self = [super init];