fix: adjust returned value of _validationIsDisabled
fix: adjust returned value of _validationIsDisabled

zurb/foundation-sites,DaSchTour/foundation-sites,zurb/foundation,zurb/foundation-sites,zurb/foundation,zurb/foundation-sites,abdullahsalem/foundation-sites,abdullahsalem/foundation-sites,abdullahsalem/foundation-sites,zurb/foundation,DaSchTour/foundation-sites