A real estate agent is not entitled to commissions for a sale of land, where, before the completion of the sale the parties disagree as to terms, and the transaction is considered at an end, if the agent acquiesces in such rescission of the contract, though the owner subsequently places it in the hands of another agent who sells it on practically the same terms to the purchasers secured by the first agent, unless fraud or bad faith be shown. Girardieu v. Gibson, 122 Ga. 313, 50 S. E. 91.