Ubuntu Server Installer does not allow timezone selection

[Alan Pound]

Seen on Dell h/w (R730) and also tested on a qemm VM.
amd64 15.10 server iso (was previously using 14.04, so I don't know when this problem started).
During installation you get the question "based on your location, your timezone is Europe/London - is this correct" (or similar words). On the previous release I used (14.04) I would answer NO and then was able to select UTC (or select some other timezone from a list). With 15.10, regardless of the answer the installer just carries on as if the reply had been YES.

Just did a testdrive of xenial - and it has the same problem....

[Alan Pound (alan-pound)]

1. A minimal series of steps necessary to make it happen, where step 1 is "start the program"....

ubuntu-15.10-server-amd64.iso - dd'd onto a USB stick, and put into a USB slot on a server, *or* VMManager on my 15.10 laptop installing directly from the .iso file *or* the program: "Test drive a UBUNTU iso" selecting "Ubuntu server xenial"... this particular narrative is from the latter, although all of the preceding go the same way....

"Launch"
"English"
"Install UBUNTU Server"
"English"
"United Kingdom"
"Detect Keyboard Layout" <No>
"English UK"
"English UK"
<wait>
"Hostname: ubuntu" <Continue>
"Username for your account" ubuntu <Continue>
"Choose a password for the new user:" password <Continue>
"Re-enter password to verify:" password <Continue>
"Encrypt your home directory" <No>
"Based on your present physical location, your time zone is Europe/London.
  If this is not correct, you may select from a full list of time zones instead.
  Is this time zone correct?" <No>

2. What you expected to happen
Print a List of time-zones from which I could select one...

3. What actually happened
"Partition Disks"....
  (This is what happens when you select <Yes> instead of <No>)