illegal choice when editing nodes that were published last year.

When editing a node that has a published date of last year, I get an illegal choice error because the published_date field #date_year_range is set to '0:+2' ... 2011 dates are not included in the options.

This setting has existed since at least version 1.2, so I'm wondering if I'm just not understanding something here.

      $form['date']['published_date'] = array(
        '#type' => 'date_select',
        '#default_value' => $published_date,
        '#date_format' => $format,
        '#date_timezone' => $local_timezone,
        '#date_year_range' => '0:+2',
        '#date_increment' => 5,
      );

Any advice would be appreciated.