How can I avoid negative penalization in choice questions?

I have a closed exam with numeric and choice questions (True/False type or with several options to choose but only one is true) in a unique file: `T2vas.Rnw` Since I do not want penalization for incorrect answers, I use ee <- exams_eval(partial = TRUE, negative = 0, rule = "none") or only `ee <- exams_eval(rule = "none")`, and then exams2moodle("T2vas.Rnw",encoding = "UTF-8",n = 1, cloze = list(cloze_schoice_display = "MULTICHOICE_V"), name = "TeoriaVAcambioeval", choice = list(eval = ee)) The result in moodle is always `{1:MULTICHOICE_V:=Verdadero~%-50%Falso}` even if a change the negative value. Previous versions work correctly using just `rule = "none"`.