If a permit or license is issued to a person for the operation of a brewery, distillery, rectifying plant or winery, and the permittee or licensee has commenced the operation of the brewery, distillery, rectifying plant or winery under the terms of the permit or license, the permit or license shall be construed to constitute a contract vesting in the licensee, for a period of fifty years from the date of the original issuance of the license or permit, a right to operate the business, which right shall not be impaired by any subsequent legislation or local option election. This section shall not be construed to permit the licensee or permittee to sell its products in this state contrary to the current laws of this state.