[NTG-context] Bug between \definealternativestyle and makeup?

Hi, I found that using \definealternativestyle in conjunction with Makeup insert a page before my Makeup page. Any idea? Thanks * * * \definecharacterkerning [mykerning] [factor=0.15] \definealternativestyle[mystyle][{\setcharacterkerning[mykerning]}]. %%% BUG!!! \definemakeup [title] [doublesided=empty, pagestate=start] \starttext \starttitlemakeup Title \stoptitlemakeup \stoptext