23 As to the third, and last, contention, namely that to the effect that the rights of the plaintiff under the cost agreement have merged in the judgment which arose as a consequence of the signing of the certificate by Registrar Powell, it seems to me that the judgment which so arose was one in respect only of the quantum due by the plaintiff and Misty Isle to the defendants. The learned Registrar expressly said that he could not, and did not, determine the question of the plaintiff's entitlement to defer payment of the account. It also seems to me to be quite plain from the terms of the retainer agreement to which I have referred that the defendants have no right to execute upon any judgment so obtained until such time as the conditions set in that agreement have been met, that is to say until such time as payment has become due under the terms of that agreement. The account, the quantum of which is now not able to be disputed by the plaintiff because of the operation of the res judicata doctrine, is only payable at the "absolute discretion" of the plaintiff and Misty Isle at least until such time as the action in respect of which the fees were incurred has reached a conclusion by way of some "resolution, settlement, obtaining of a paid judgment or discontinuance" (cl 2 of the agreement). Until that time there is no entitlement in the defendants to be paid, and consequently no entitlement to enforce the judgment as to quantum to which I have referred.