[twill] 500 error causes twill to not know what page it is on

[Titus Brown]

-> I am trying to browse to a page which gives a 500 error. I see this in the 
-> error_log on the server. But the browser still is able to display the page.
-> 
-> However when I use twill, it says:
-> 
-> ==> at None
-> current page: None
-> 
-> What gives?

Hi, Suresh,

good question ;).  I'll see what I can do; at the moment, I think this
is coming from mechanize's default behavior, but I can fix that.

thanks,
--titus