Didn't this sort of thing used to work? (The spaces are being interpreted as if they're in a URL?)

http://test.dwagn.org/wagn/inclusion_in_link

/name}|add a {_self|name} card on cardtype cards doesn't seem like it would work on cardtypes with a space in their name, but it does.

A "key" view would fix these; seems reasonable for the latter but a bit geeky for the former.