Wrong type return in - fetchShortURLWithResultBlock:resultBlock:failureBlock

[lm2s]

- (void)fetchShortURLWithResultBlock:(void (^)(NSURL *))resultBlock failureBlock:(void (^)(NSError *))failureBlock

This method has NSURL in the resultBlock signature but the result actually comes as NSString:

    [session _performJSONRequest:request successBlock:^(id object) {
        if ([object isKindOfClass:[NSDictionary class]] && object[@"url"]) {
            self.shortURL = object[@"url"];
            RunBlockOnMainThread(resultBlock, self.shortURL);
        } else {
            RunBlockOnMainThread(failureBlock, [CLDError errorWithCode:CLDErrorCodeInvalidResponse]);
        }
    } failureBlock:^(CLDError *error) {
        RunBlockOnMainThread(failureBlock, error);
    }];