[plt-scheme] define-match-expander broken...

when using with expression match form:
Welcome to MzScheme v3.99.0.18 [3m], Copyright (c) 2004-2008 PLT Scheme
Inc.
> (require scheme/match)
> (define-match-expander foobar (lambda () #f) (lambda () #f))
reference to undefined identifier: no-old-match-form

Which is interesting, given that no-old-match-form does exist in
scheme/match.ss. [using mzlib/plt-match directly works of course]
svn updated late last night.

-- vyzo