The filing of an application for a license, the contents of the application and the issuance of the license shall be confidential information and no disclosure thereof shall be made except that which is necessary in the administration of this act [57-10-1 to 57- 10-12 NMSA 1978]. However, disclosure of the above-mentioned information may be made with the consent of the applicant. The filing of the application and the issuance of the license shall not be confidential after public notice of the proposed sale has been given by the applicant.