protected IActionResult CheckParentValidityAndRedirect(FormSection section, int submittedPageId)
        {
            var licenceId     = Session.GetCurrentLicenceId();
            var sectionLength = FormDefinition.GetSectionLength(section);
            var nextPageId    = submittedPageId + 1;

            if (Session.GetCurrentUserIsAdmin())
            {
                return(RedirectToAction("Licence", "Admin", new { id = licenceId }));
            }

            if (nextPageId != sectionLength)
            {
                var parent = FindParentSection(section, licenceId);

                return(parent == null
                    ? RedirectToAction("TaskList", "Licence")
                    : ValidateParentAndRedirect(parent, section, nextPageId));
            }

            return(RedirectToLastAction(section));
        }