[Zope] Set and Detect Cookies in same call?

I have searched high and low for an answer, and haven't found one yet: Is it possible to set a cookie, then detect if it got set properly immediately after? Or do I have to set it in one call, then detect it in another? It seems that setCookie puts the "cookie" variable into the request object regardless if cookies are enabled, so a later in the same call, calling cookies.has_key always returns true. Is this what's happening? Thanks -jim