When real property owned by the state of North Dakota as trustee of permanent school funds for the use and benefit thereof is sold upon contract providing for a future conveyance, the department or office making such contract on the part of the vendor shall immediately notify the county auditor of the county wherein the real property is situated, of the making of the contract, the description of the real property therein described, and the name of the vendee. The real property must be put upon the tax rolls of the county and assessed and the taxes must be levied thereon, based upon its taxable value on the first day of February next succeeding the date of the contract. In the event that the contract is canceled by the vendor and not redeemed, the taxes must be immediately canceled and stricken from the tax rolls by the county auditor upon notice of such expiration of the period of redemption being reported to the county auditor by the vendor.