[racket-dev] Scribble: feature request - module paths for image

I have a scribble document that is built from two distinct locations, 
which makes using the Scribble image form nearly impossible since it 
takes a path relative to the build location.  (My work around is 
symbolic links in the file system.)

What would solve my problem is the ability to pass a module-path prefix, 
e.g. (image 'foo/bar/baz "some-image.png").

Does this seem like a sensible thing to add?

(BTW, the collects option doesn't help me because I need to reference 
module locations that are not in the main collection.)

David