From 0e047941e96b4aabda9154cd5f733387fc375002 Mon Sep 17 00:00:00 2001
From: Katsuma Ito <katsumai@gmail.com>
Date: Tue, 20 Jan 2015 18:31:07 +0800
Subject: [PATCH] Clear SDWebImagePrefetcher progressBlock when it has
 completed

If progressblock captures objects, captured objects remain until next SDWebImagePrefetcher works.
So, nil clear progressBlock as well as completionBlock.
---
 SDWebImage/SDWebImagePrefetcher.m | 1 +
 1 file changed, 1 insertion(+)

diff --git a/SDWebImage/SDWebImagePrefetcher.m b/SDWebImage/SDWebImagePrefetcher.m
index 7855eea47..5c69a2884 100644
--- a/SDWebImage/SDWebImagePrefetcher.m
+++ b/SDWebImage/SDWebImagePrefetcher.m
@@ -94,6 +94,7 @@ - (void)startPrefetchingAtIndex:(NSUInteger)index {
                 self.completionBlock(self.finishedCount, self.skippedCount);
                 self.completionBlock = nil;
             }
+            self.progressBlock = nil;
         }
     }];
 }