What is restoration benefit in health insurance?

It is a value addition for a family floater plan as, if any one member exhausts the limit, others still are covered. The restored sum insured is not liable to be carried forward to the next policy year.

from Wealth-Economic Times https://economictimes.indiatimes.com/wealth/insure/health-insurance/what-is-restoration-benefit-in-health-insurance/articleshow/82116400.cms