关于iphone平台下按 电源键，gl verts 翻倍问题

Cocos2d-x Lua
#1

请问有没遇到，在iPhone下按了电源键，然后机器进入锁屏状态，再进入iPhone发现gl verts 翻倍（原来820 ，后来变成1640），在android下没问题，用的是3.5 lua版本，

void AppDelegate::applicationDidEnterBackground()
{
Director::getInstance()->stopAnimation();

SimpleAudioEngine::getInstance()->pauseBackgroundMusic();

}

// this function will be called when the app is active again
void AppDelegate::applicationWillEnterForeground()
{
Director::getInstance()->startAnimation();

SimpleAudioEngine::getInstance()->resumeBackgroundMusic();

}