Why doesn't CCArray conform to the two phase initialization convention?

cocos2d-x C++
#1

I recently downloaded cocos2d-2.1rc0-x-2.1.3 and today I found that the code invoked init() in the constructors of CCArray:

    CCArray::CCArray()
    : data(NULL)
    {
        init();
    }

    CCArray::CCArray(unsigned int capacity)
    : data(NULL)
    {
        initWithCapacity(capacity);
    }

Not only this is confusing and a little ugly, it also caused unnecessary additional allocation/free operations in the create() functions.