KVO崩溃问题 忘记了注销监听

- (void)loadData {
    [[KINGNetWorkHandler sharedHandler]getEmergencyInfoWithEmId:self.model.emId Block:^(NSDictionary *keyDict, NSError *error) {
        if (error || [keyDict[@"code"] integerValue]!=0) {return ;}
        [self.model setValuesForKeysWithDictionary:keyDict];
        [[KINGNetWorkHandler sharedHandler] getTaskInfoWithTaskId:self.model.taskId Block:^(NSDictionary *keyDict, NSError *error) {    
            if (error || [keyDict[@"code"] integerValue]!=0) {return ;}
            self.currentTask = [KINGTaskInfoNetModel mj_objectWithKeyValues:keyDict];
            self.currentTask.isFromEmergency = YES;
            //添加监听当前task的status状态
            [self.currentTask addObserver:self forKeyPath:@"status" options:NSKeyValueObservingOptionNew context:nil];
        }];
    }];
}

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSString *,id> *)change context:(void *)context {
    if ([object isKindOfClass:[KINGTaskInfoNetModel class]]) {        
        self.model.emStatus = [(KINGTaskInfoNetModel *)object status];
        if ([self.model.emStatusString isEqualToString:@"已处理"]) {
            self.listModel.currentEM = nil;
            [KINGDataBase saveEmergencyListNetModel:self.listModel];
        }
    }
}

*//问题在这里 忘记了dealloc删除监听-------------------------

- (void)dealloc {
    [self.currentTask removeObserver:self forKeyPath:@"status" context:nil];//KVO崩溃,添加监听者必须记得取消监听 否则就崩给你看
}

*//问题在这里 忘记了dealloc删除监听-------------------------