lib/View.php
protected function initializeBindings()
    {
        if (!$this->getMetaDataBinding()) {
            $siteClass = get_class($this->site);
            if ($binding = $siteClass::getPost()) {
                $this->setMetaDataBinding($binding);
            }

        }
        $this->bindRegistryItems();
    }
protected function initializeBindings()
    {
        if (!$this->getMetaDataBinding()) {
            $siteClass = get_class($this->site);
            if ($binding = $siteClass::getPost()) {
                $this->setMetaDataBinding($binding);
            }

        }
        $this->bindRegistryItems();
    }
If the delegated MetaDataBinding hasn't been set yet,
assume the current post, as a PostType object.
Use to bind Registery items.