From 1e78a5b2f976dc66db6673a98f4cb358dc65dc5e Mon Sep 17 00:00:00 2001
From: Patrick Hernandez <kirsplatrick@gmail.com>
Date: Wed, 11 Apr 2012 18:37:53 -0500
Subject: [PATCH] Fixed crash in special case for custom callback queues -
 Added a line for setting _successCallbackQueue to NULL when releasing the
 call back queue in the setter - Added a line for setting
 _failureCallbackQueue to NULL when releasing the call back queue in the
 setter

---
 AFNetworking/AFHTTPRequestOperation.m | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/AFNetworking/AFHTTPRequestOperation.m b/AFNetworking/AFHTTPRequestOperation.m
index 871cb18..5e1dce9 100644
--- a/AFNetworking/AFHTTPRequestOperation.m
+++ b/AFNetworking/AFHTTPRequestOperation.m
@@ -135,6 +135,7 @@ static NSString * AFStringFromIndexSet(NSIndexSet *indexSet) {
     if (successCallbackQueue != _successCallbackQueue) {
         if (_successCallbackQueue) {
             dispatch_release(_successCallbackQueue);
+            _successCallbackQueue = NULL;
         }
      
         if (successCallbackQueue) {
@@ -148,6 +149,7 @@ static NSString * AFStringFromIndexSet(NSIndexSet *indexSet) {
     if (failureCallbackQueue != _failureCallbackQueue) {
         if (_failureCallbackQueue) {
             dispatch_release(_failureCallbackQueue);
+            _failureCallbackQueue = NULL;
         }
         
         if (failureCallbackQueue) {