How to pass a single space as a query parameter in rest dsl?

[Matt Sicker]

Suppose I have a simple REST DSL:

rest().get("/test").route().setBody(header("foo"));

Then I do something like:

curl http://localhost:8080/test?foo=+

I get an empty response because ${headers.foo} is null for some reason.
This isn't expected behavior, especially because the query parameters
aren't supposed to be URL-decoded by default.

If it helps, I'm using the netty4 rest binding.

-- 
Matt Sicker <boa...@gmail.com>