fix observer bug jezzmemo#68

Author: Jezz

JJException.xcodeproj/project.xcworkspace/xcuserdata/jezz.xcuserdatad/UserInterfaceState.xcuserstate

@@ -28,7 +28,7 @@
             ignoreCount = "0"
             continueAfterRunningActions = "No"
             filePath = "JJException/ViewController.m"
-            timestampString = "581006976.523271"
+            timestampString = "584812300.268707"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
             startingLineNumber = "73"

JJException.xcodeproj/xcuserdata/jezz.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist

@@ -292,6 +292,12 @@ - (void)hookRemoveObserver:(NSObject *)observer forKeyPath:(NSString *)keyPath{
         return;
     }
 
+    /*
+     * Fix observer associated bug,disconnect the self and observer,
+     * bug link:https://github.com/jezzmemo/JJException/issues/68
+     */
+    objc_setAssociatedObject(observer, &ObserverDeallocKVOKey, nil, OBJC_ASSOCIATION_RETAIN);
+    
     KVOObjectItem* item = [[KVOObjectItem alloc] init];
     item.observer = observer;
     item.keyPath = keyPath;