Created Issue: NullReferenceException occurs when using only FullViewDateTimeConverter [10219]

If you use only FullViewDateTimeConverter, NullReferenceException occurs. Part of callstack is below:

System.NullReferenceException was unhandled
Message=NullReferenceException
StackTrace:
at Microsoft.Phone.Controls.DateTimeFormatHelper.GetShortTime(DateTime dt)
at Microsoft.Phone.Controls.FullViewDateTimeConverter.Convert(Object value, Type targetType, Object parameter, CultureInfo culture)
at System.Windows.Data.BindingExpression.ConvertToTarget(Object value)


I have not confirmed but I think the cause is DateTimeFormatHelper.formatInfo_GetSuperShortTime is not created when GetShortTime method is called. Looks like other converters don't have this issue.

Toolkit version is Nov 2011 release.