The legal relations of persons, including refugees and expellees, who on 8 May 1945 were employed in the public service, have left the service for reasons other than those recognised by civil service regulations or collective bar­gaining agreements and have not yet been reinstated or are employed in positions that do not correspond to those they previously held shall be regulated by a federal law. The same shall apply, mutatis mutandis, to persons, including refugees and expellees, who on 8 May 1945 were entitled to pensions and related benefits and who for reasons other than those recognised by civil service regulations or collective bargaining agreements no longer receive any such pension or related benefits. Until the pertinent federal law takes effect, no legal claims may be made, unless Land law otherwise provides.