I just looked at the code...
Actually, I'm wrong and in generally you *don't* want that stuff.
I need it in my case because I'm using the ridiculously over the top
word-context style (which I suspect no one else has ever used). *This*
gives you a subcontext. Otherwise, you *don't* get an extra
subcomponent, so you need to leave out the ":*". There is documentation
on word-context indicating this extra behaviour, but it isn't relevant
in your case, so I've just been confusing you, sorry.
Here's an example of the re-using a match widget for a specific style.
...