In the event that the Commission has recommended against a proposed amendment, supplement, change or modification in the boundaries of any zoning district, and such amendment or change has not been approved by the City Council as provided, such proposed amendment, supplement, change, or modification shall neither be submitted nor considered for recommendation by the Commission prior to the expiration of six (6) months from the date of the order of decision by the City Council against such zone change, unless conditions pertaining to property considered in the original application and/or property in the area have, in the opinion of the Planning and Zoning Commission changed to such an extent as to justify a subsequent application prior to the expiration of six (6) months from the date of the original order or decision of the Planning and Zoning Commission.