non-recoverable error trying to make smart group in 1.7 alpha demo

I received this error on my test system and then was able to duplicate it on the 1.7 alpha demo system.

In search builder I built a search with the following:

Found 16 contacts

• City = los angeles ... AND ... Contact Type - 'Individual'
• OR
• Member of Group = Newsletter Subscribers ... AND ... Group Status - "Added" ... AND ... Contact Type - 'Individual'

I then selected from the drop down menu to make a smart group and received the following:

backTrace

/home/drupal/svn/civicrm_v1.7/CRM/Core/Error.php, backtrace, 230
/home/drupal/svn/civicrm_v1.7/CRM/Contact/BAO/Query.php, fatal, 1190
/home/drupal/svn/civicrm_v1.7/CRM/Contact/BAO/Query.php, restWhere, 993
/home/drupal/svn/civicrm_v1.7/CRM/Contact/BAO/Query.php, whereClauseSingle, 1025
/home/drupal/svn/civicrm_v1.7/CRM/Contact/BAO/Query.php, whereClause, 337
/home/drupal/svn/civicrm_v1.7/CRM/Contact/BAO/Query.php, initialize, 304
/home/drupal/svn/civicrm_v1.7/CRM/Contact/Form/Task/SaveSearch.php, __construct, 86
/home/drupal/svn/civicrm_v1.7/CRM/Core/Form.php, buildQuickForm, 294
/home/drupal/svn/civicrm_v1.7/CRM/Core/QuickForm/Action/Display.php, buildForm, 98
/home/drupal/svn/civicrm_v1.7/packages/HTML/QuickForm/Controller.php, perform, 195
/home/drupal/svn/civicrm_v1.7/packages/HTML/QuickForm/Page.php, handle, 95
/home/drupal/svn/civicrm_v1.7/CRM/Core/Controller.php, handle, 213
/home/drupal/svn/civicrm_v1.7/CRM/Core/Invoke.php, run, 429
/home/drupal/svn/civicrm_v1.7/CRM/Core/Invoke.php, search, 361
/home/drupal/svn/civicrm_v1.7/CRM/Core/Invoke.php, contact, 82
/home/drupal/svn/civicrm_v1.7/drupal/civicrm.module, invoke, 288
, civicrm_invoke,
/home/drupal/public_html/drupal/includes/menu.inc, call_user_func_array, 418
/home/drupal/public_html/drupal/index.php, menu_execute_active_handler, 15

unrecoverable error
Sorry. A non-recoverable error has occurred.

This is an unexpected place to be in, contact support

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