No conveyance or other act made or done subsequently to the execution of a will of, or relating to, any real or personal estate therein comprised, except an act by which such will shall be duly revoked, shall prevent the operation of the will with respect to any estate or interest in such real or personal estate as the testator shall have power to dispose of by will at the time of the testator's death.
N.C. Gen. Stat. § 31-5.6