Any conveyance made and filed of record prior to the effective date of this act¹ placing real property or any interest therein in a trust naming the trust itself as the grantee shall be valid for all purposes unless any person claiming adversely to such trust or to its successors shall file an affidavit setting forth the basis of such in the office of the county clerk of the county or counties wherein said property is located within one (1) year from the effective date of this act.