Property shall not be exempt from execution when the purchase-money thereof forms, in whole or in part, the debt on which the judgment is founded; but if the judgment be not in whole for purchase-money, and the execution be levied on property exempt but for the provisions hereof, and the exemptionist pay or tender the amount of purchase-money included in the judgment before sale, the property shall be released; nor shall any property be exempt from sale for nonpayment of taxes or assessments, or for any labor done thereon, or materials furnished therefor, or when the judgment is for labor performed or upon a forfeited recognizance or bail bond.