Usufructuary Sale Validity with Buyer's Knowledge of Limited Title

A dispute arose regarding the validity of a contract for the sale of land where the seller, having only a usufructuary right, purported to transfer full ownership to the buyer, who was aware of the true extent of the seller's title, and the buyer subsequently sought annulment of the sale upon discovering the seller could not transfer full ownership. The court rejected the appeal, reasoning that the buyer, having knowledge of the limitation on the seller's title (the existence of the naked ownership), could not claim nullity based on the seller's inability to convey full ownership, as the contract was validly executed based on the rights the seller actually possessed, and the buyer assumed the risk regarding the full title transfer.