LayerMultiplex::switchToAndReleaseMe这个方法是不是有BUG么？

Cocos2d-x
#1

void LayerMultiplex::switchToAndReleaseMe(int n)
{
CCASSERT( n < _layers.size(), “Invalid index in MultiplexLayer switchTo message” );

this->removeChild(_layers.at(_enabledLayer), true);


_layers.replace(_enabledLayer, nullptr);


_enabledLayer = n;


this->addChild(_layers.at(n));

}

replace方法第二个参数不能传递null
void replace(ssize_t index, T object)
{
CCASSERT(index >= 0 && index < size(), “Invalid index!”);
CCASSERT(object != nullptr, “The object should not be nullptr”);

    _data->release();
    _data = object;

object->retain();
}

#2

关个注:12:~~~~~~~~~~~~

#3

void LayerMultiplex::switchToAndReleaseMe(int n)
{
CCASSERT( n < _layers.size(), “Invalid index in MultiplexLayer switchTo message” );

this->removeChild(_layers.at(_enabledLayer), true);

_layers.erase(_enabledLayer);

_enabledLayer = n;

this->addChild(_layers.at(n));

}

人工改成这样了，版本3.2