Heirs on intestacy as reversionary heirs

Where the testator has directed that the heir is to be heir only until a particular date or the occurrence of a particular event, without providing who is to receive the inheritance thereafter, then it is to be assumed that the persons appointed as reversionary heirs are those who would be the heirs on intestacy of the testator if the testator had died on the date or at the time of the occurrence of the event. The treasury is not one of the heirs on intestacy within the meaning of this provision.