[Zope] URL parsing error in 2.2.0b2

[T.J. Mannos]

I used to be able to use URLs like this in Zope 2.1.6:
    http://mysite.com/somepage?url=http://somewhere.com

In Zope 2.2.0b2, I get a "404 File Not Found" error.  Do I need to URL-quote
the address now?