[NTG-context] Disable Ligatures in \type

Hi all, When I use \type{} or \starttyping, I get unwanted ligatures in ConTeXt MkIV output (e.g. “–” for “--” and the ff/fl/fi ligatures). Please see the attached for a minimal example. Things work as expected with the default fonts, but break when \definefontfamily is used, even for Latin Modern Mono. Have I missed some documentation, or is there a bug? Thanks, Gareth