Nationality — Acquisition of — As the Result of Territorial Changes — Re-acquisition of Former Nationality by Persons who were Nationals of Territories which Lost their Independence and Subsequently Re-acquired it — Acquisition of German Nationality by Austrian Citizens as a result of Incorporation of Austria into German Reich — Re-Acquisition of Austrian Nationality after Severance of Austria from Reich — Whether Re-Acquisition Resulted in Loss of German Nationality — Liability to Extradition.