In case of redemption from sale under judgment, the redemptioner shall pay such sums as are now required by law for redemption under execution sale, and such additional sum as may have been expended upon the property so redeemed by the purchaser under execution, or the assigns of the purchaser, in order to keep alive the possessory right thereto after the execution sale, not exceeding $100 for each claim, with 10 percent interest thereon from date of such expenditures. [Amended by 2003 c.576 § 466]