IE and Flash parameters on redirects

Man, just stumbled over this little gem about Flash and IE:

If you embed Flash, and on the server side use a redirect to point at the .swf real location, including some query parameters all works fine. That is, until you also pass parameters in them html code. I.e. so if you embed “/foo/bar/loco.swf?foo=bar”, and want you redirect to “/foo/bar/chupito.swf?other=bother”, Flash will get “foo=bar” by IE. Nice :(