Sec. 7. This chapter does not affect:
(1) the title to any real estate recovered or conveyed before March 6, 1905, by or under the authority of the state as escheated land;
(2) litigation pending on March 6, 1905, involving the escheat of land to the state; or
(3) the title of the state to any land to which the state has claimed, asserted, or attempted to assert title before March 6, 1905, by an action in any court of Indiana.