The buyer of immovables may cancel the sale by refunding the price (or any amount specified by agreement if otherwise agreed upon; the same applies in Article 583, paragraph (1)) and costs of the contract paid by the buyer in accordance with a special agreement on redemption executed simultaneously with the contract for sale. In such a case, unless a particular intention is manifested by the parties, it is deemed that the fruit of the immovables and the interest on the price have been set off against each other.