// It is impossible to submit a form with hidden fields failing validation, e.g. one that
// is required. However, validity is not checked for disabled fields, as these are not
// submitted with the form. So we should also disable fields when hiding them.
// It is impossible to submit a form with hidden fields failing validation, e.g. one that
// is required. However, validity is not checked for disabled fields, as these are not
// submitted with the form. So we should also disable fields when hiding them.