[NTG-context] Wrong upright Greek instead of Italic

This gives me upright Greek, but I was expecting italic: \setupbodyfont[xits] \starttext $\mathit{ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ}$ $\mathbi{ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ}$ \stoptext -- Khaled Hosny Arabic localiser and member of Arabeyes.org team Free font developer