By Luc Cohen NEW YORK (Reuters) -Ghislaine Maxwell on Friday lost her bid to overturn her U.S. sex trafficking conviction, even after a juror acknowledged having falsely stated before the trial that he had not been sexually abused. U.S. Circuit Judge Alison Nathan said the juror, a man known in court papers as Juror 50, testified truthfully at a hearing last month, after Maxwell’s lawyers said his false answers on a pretrial questionnaire justified granting a new trial. “His failure to disclose his prior sexual abuse during the jury selection process was highly unfortunate, but not deliberate,…