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User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040510

Description of problem:
When changing properties of existing users, trying to enable the
'Enable account expiration' option, it's never saved.

Version-Release number of selected component (if applicable):
system-config-users-1.2.13-1

How reproducible:
Always

Steps to Reproduce:
1. Select an existing user and choose Properties
2. Goto \Account Info' tab
3. Check the 'Enable account expiration' option
4. Specify a date like '2004-12-31'
5. Click OK to save.
    

Actual Results:  The window closes just like it saved the change. But
when you get back to the same place, you'll see it's still not checked.

Expected Results:  The account expiration should be enabled with the
specified date.

Additional info: