Comment 2 for bug 349504

Here's a potential fix. Here's the changelog

  * debian/patches/593_omit_lastchange_field_if_clock_is_misset (LP: #349504)
    - If the system clock is set to Jan 01, 1970, and a new user is created
      the last changed field gets set to 0, which tells login that the
      password is expired and must be changed. During installation,
      this can cause autologin to fail. Having the clock set to 01/01/1970
      on a fresh install is common on the ARM architecture, so this is a high
      priority bug since its likely to affect most ARM users on first install

Colin, your comments?