{f:if(condition: settings.addToCartByAjax, then: '1', else: '0') -> f:variable(name: 'useAjax')}
{preselectedVariant -> f:variable(name: 'currentlySelectedVariant')}
{product.defaultVariant -> f:variable(name: 'currentlySelectedVariant')}
{f:if(condition: currentlySelectedVariant, then: currentlySelectedVariant.mawiSku, else: product.mawiSku)}