Bug#496194: [netinst daily build] manual/guided choice is presented only once

[Maciej Pilichowski <bluedzins@wp.pl>]

Hello,

> The main partitioning screen has an option "Guided partitioning" as
> one of the top choices for that purpose. 

I know. Choose this option. Change your mind and get back to 
this "main partitioning screen" -- impossible. This is my report 
about -- this main screen is shown only once, user cannot change 
his/her mind.

imho after clicking at "partitioning" step, installer should show the 
main partitioning screen, not the second one. But it happens that 
way -- once you told installer which mode you want, installer will 
stick to it, change is impossible (unless you reboot computer).

Cheers,