Section, added [Pub. L. 86–770, § 2(a)], Sept. 13, 1960, [74 Stat. 912], provided that if a case within the exclusive jurisdiction of the district courts was filed in the Court of Claims, the Court of Claims, if it were in the interest of justice, had to transfer such case to any district court in which it could have been brought at the time such case was filed, where the case would proceed as if it had been filed in the district court on the date it was filed in the Court of Claims.