Notwithstanding any other provision of this chapter and only for purposes of , a United State district court, for fact-finding purposes, may refer to the Commission, and the Commission may determine, questions of the amount and ownership of a claim by a United States national (as defined in ), resulting from the confiscation of property by the Government of Cuba described in , whether or not the United States national qualified as a national of the United States (as defined in ) at the time of the action by the Government of Cuba.section 6082 of this title1section 6023 of this titlesection 1643b(a) of this titlesection 1643a(1) of this title