From c5d602bd6dca4cd448d440f07d295299c04adf68 Mon Sep 17 00:00:00 2001
From: Aparajita Fishman <aparajita@aparajita.com>
Date: Wed, 24 Aug 2011 01:35:33 -0400
Subject: [PATCH] Removed mistaken exception, it's okay if
 didChangeValueForKey: is called without willChangeValueForKey:

---
 Foundation/CPKeyValueObserving.j | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Foundation/CPKeyValueObserving.j b/Foundation/CPKeyValueObserving.j
index b73563066..e68657a73 100644
--- a/Foundation/CPKeyValueObserving.j
+++ b/Foundation/CPKeyValueObserving.j
@@ -775,7 +775,7 @@ var kvoNewAndOld        = CPKeyValueObservingOptionNew | CPKeyValueObservingOpti
     else
     {
         if (!changes)
-            [CPException raise:@"CPKeyValueObservingException" reason:@"'didChange...' message called without prior call of 'willChange...'"];
+            return;
 
         [changes removeObjectForKey:CPKeyValueChangeNotificationIsPriorKey];