Bug#274617: Timezone not selected using existing system timezone

[Jason Wies <jason@xc.net>]

Package: base-config

Version: d-i pre-rc2

After the base pre-rc2 install and reboot into base-config.

I set the timezone to 'Eastern', completed the rest of base-config,
and the timezone was indeed set to EST/EDT.  I immediately re-ran
base-config, and was prompted for the timezone again.  'Eastern' was
not selected by default, nor was US/North America, etc.  The selection
of choices (the menu structure at least) was different from what was
presented the first time as well.

This has happened in all of the d-i betas/rc's/dailies that I've
tested.  It should use the current timezone as the default.

Jason