If an insolvent, before the sequestration of his estate, entered into a contract for the acquisition of immovable property which was not transferred to him, the trustee of his insolvent estate may enforce or abandon the contract. The other party to the contract may call upon the trustee by notice in writing to elect whether he will enforce or abandon the contract, and if the trustee has after the expiration of six weeks as from the receipt of the notice, failed to make his election as aforesaid and inform the other party thereof, the other party may apply to the court by motion for cancellation of the contract and for an order directing the trustee to restore to the applicant the possession of any immovable property under the control of the trustee, of which the insolvent or the trustee gained possession or control by virtue of the contract, and the court may make such order on the application as it thinks fit: Provided that this section shall not affect any right which the other party may have to establish against the insolvent estate, a non-preferent claim for compensation for any loss suffered by him as a result of the non-fulfilment of the contract.