Ah... that would explain much.
...leaves open the interesting possibility that “Baby Jane” could be born in “Country X” by a mother who is a citizen of “Country Z” then “X” says you are not a citizen here because your mom was from “Z” and “Z” says you are not a citizen here because you were born in “X” ...I suppose they have international treaties that sort that out.
-jw
Norway is also pretty nasty about dual citizenship. It says that she had a Swedish passport first. She might have lost her citizenship by that feature and have to go through the procedure of re-claiming it prior to her 23rd birthday that the Norway law requires.