What is the ruling if the pawnee revokes permission before the slave is manumitted and the pledgor is aware of the revocation?

Primary text

If the pawnee revokes the permission before the manumission occurs, and the pledgor knows of the revocation, the situation reverts to one where no permission was given. If the pledgor proceeds with manumission after learning of the revocation, there are two differing opinions regarding its validity, based on the ruling concerning a proxy who is dismissed without their knowledge.