From e3b15e3dbe89d99ef7c3775e46159d52e3289b46 Mon Sep 17 00:00:00 2001
From: Kyle Fleming <garthex@gmail.com>
Date: Wed, 1 May 2013 14:36:13 -0700
Subject: [PATCH] fix alpha pngs turning into white pngs when caching when you
 have a method that transforms the image but doesn't touch the pngs

---
 SDWebImage/SDWebImageManager.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/SDWebImage/SDWebImageManager.m b/SDWebImage/SDWebImageManager.m
index c5dafcdb..50d247bf 100644
--- a/SDWebImage/SDWebImageManager.m
+++ b/SDWebImage/SDWebImageManager.m
@@ -160,7 +160,7 @@
 
                             if (transformedImage && finished)
                             {
-                                NSData *dataToStore = isImageGIF ? data : nil;
+                                NSData *dataToStore = [transformedImage isEqual:downloadedImage] ? data : nil;
                                 [self.imageCache storeImage:transformedImage imageData:dataToStore forKey:key toDisk:cacheOnDisk];
                             }
                         });