Emmanuel Carrère’s latest novel, “Yoga,” has stoked debate in France after the author’s ex-wife, Hélène Devynck, accused him of writing about her without her consent.Emmanuel Carrère’s latest novel, “Yoga,” has stoked debate in France after the author’s ex-wife, Hélène Devynck, accused him of writing about her without her consent.Read MoreCarrere, Emmanuel, Writing and Writers, Books and Literature, Dating and Relationships, Divorce, Separations and Annulments, France, Yoga (Book), Privacy, Devynck, Helene