For new users, it would be easier if they can just type "japanese" to stand for "japanese-cuisine". New users can't create new tags, and rather than having them not tag the type of cuisine, a bit of automation can help. (For seasoned users, those two tags would be synonyms anyway.)
Since the tag autocompleter begins matching at
japa I don't think this is really necessary, is it?
What I mean is, nobody actually needs to type "japanese-cuisine", they can just type "japa" and use their mouse to select or press tab or enter to select.