under section 5 of the ireland act 1949, a person who was born in the territory of the future republic of ireland as a british subject, but who did not receive irish citizenship under the ireland act's interpretation of either the 1922 irish constitution or the 1935 irish nationality and citizenship act (because he or she was no longer domiciled in the republic on the day the constitution came into force and was not permanently resident there on the day of the 1935 law's enactment and was not otherwise registered as an irish citizen) was deemed to be a citizen of the united kingdom and colonies.