Sec. 2. In cases where lands belonging to the Public Free School Fund located in Hardeman County stand forfeited on the records of the General Land Office and said forfeitures having been made by the Commissioner of the General Land Office prior to September 25, 1943, and after January 1, 1943, and where the lands have been improved by the present occupant or user to the extent of One Hundred ($100.00) Dollars or more, the said forfeitures may be set aside and the original purchases re-instated by the said Commissioner upon payment of all moneys due and owing on such land, including interest and principal; providing that such reinstatement shall not be effective as to any intervening rights of third parties.