Dear list, I have this minimal sample: \mainlanguage[fr] \setupregister[method=default] \starttext Aristote\index{Aristote}, %~ Œdipe\index{Œdipe} Platon\index{Platon} d'Ænésidème\index{Ænésidème} \placeindex \stoptext If I comment the “Platon” entry, a is only one head. But if I compile with that entry uncommented using latest beta from 2017.04.02 19:51, a are two heads. Isn’t it a bug in index sorting? Many thanks for your help, Pablo -- http://www.ousia.tk