Bug#762266: Locale dependency

[Nachanon Vetjasit]

This bug seems to be dependent on system's global locale settings.

In the original post, which the problem surfaced, has this
system locale settings:
LANG=th_TH
LANGUAGE=
LC_CTYPE=th_TH
LC_NUMERIC=th_TH
LC_TIME=th_TH
LC_COLLATE=th_TH
LC_MONETARY=th_TH
LC_MESSAGES=en_US
LC_PAPER=th_TH
LC_NAME=th_TH
LC_ADDRESS=th_TH
LC_TELEPHONE=th_TH
LC_MEASUREMENT=th_TH
LC_IDENTIFICATION=th_TH
LC_ALL=

But when I changed system's locale settings to all en_US:
LANG=en_US
LANGUAGE=
LC_CTYPE=en_US
LC_NUMERIC=en_US
LC_TIME=en_US
LC_COLLATE=en_US
LC_MONETARY=en_US
LC_MESSAGES=en_US
LC_PAPER=en_US
LC_NAME=en_US
LC_ADDRESS=en_US
LC_TELEPHONE=en_US
LC_MEASUREMENT=en_US
LC_IDENTIFICATION=en_US
LC_ALL=

I logged out, relogin, and tried to lock screen again. The problem
now mysteriously disappeared; second line in the dialog now shown
a correct date (but in en_US manner):

               11:26:33 PM
               09/20/2014

            Nachanon Vetjasit
           window on WINDOW-NB

   Password: [                   ] en

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