CCLuaEngine bug

in CCLuaEngine.cpp method:

int CCLuaEngine::executeLayerTouchEvent(CCLayer* pLayer, int eventType, CCTouch pTouch)
CCScriptHandlerEntry
pScriptHandlerEntry = pLayer~~>getScriptAccelerateHandlerEntry;
int nHandler = pScriptHandlerEntry~~>getHandler();

why is pScriptHandlerEntry NULL?
As I known , you have checked this in github version , but why it’s NULL ?