Warning related to CCK multigroup on bypass

1. Install CCK 6.x-3.0-alpha3
2. Create content type test_010 (see code below)
3. Create node 'test_010' with title '123' and save it
4. Create 2nd node 'test_010' with title '123' and pres save
5. Message in error block will looks like

The Title field requires a unique value, and the specified value is already used. Matches are found in the following content:
    123
Click here to bypass this check and resubmit.

6. Press 'bypass'

7. New error message says

warning: Invalid argument supplied for foreach() in C:\home\slovania\public_html\modern-talking\modules\cck\modules\content_multigroup\content_multigroup.node_form.inc on line 399.

Content type 'test_010'

$content['type']  = array (
  'name' => 'Test_010',
  'type' => 'test_010',
  'description' => 'Test unique field with multigroup CCK',
  'title_label' => 'Title',
  'body_label' => 'Body',
  'min_word_count' => '0',
  'help' => '',
  'node_options' => 
  array (
    'status' => true,
    'promote' => true,
    'sticky' => false,
    'revision' => false,
  ),
  'language_content_type' => '0',
  'old_type' => 'test_010',
  'orig_type' => '',
  'module' => 'node',
  'custom' => '1',
  'modified' => '1',
  'locked' => '0',
  'comment' => '2',
  'comment_default_mode' => '4',
  'comment_default_order' => '1',
  'comment_default_per_page' => '50',
  'comment_controls' => '3',
  'comment_anonymous' => 0,
  'comment_subject_field' => '1',
  'comment_preview' => '1',
  'comment_form_location' => '0',
  'unique_field_fields' => 
  array (
    'title' => true,
    'name' => false,
    'field_test_010_multigroup_item' => false,
  ),
  'unique_field_scope' => 'type',
  'unique_field_comp' => 'each',
  'unique_field_show_matches' => 
  array (
    'show_matches' => true,
  ),
  'i18n_newnode_current' => 0,
  'i18n_required_node' => 0,
  'i18n_lock_node' => 0,
  'i18n_node' => 1,
);
$content['groups']  = array (
  0 => 
  array (
    'label' => 'Multigroup field',
    'group_type' => 'multigroup',
    'settings' => 
    array (
      'form' => 
      array (
        'style' => 'fieldset',
        'description' => '',
      ),
      'display' => 
      array (
        'description' => '',
        'teaser' => 
        array (
          'format' => 'fieldset',
          'exclude' => 0,
        ),
        'full' => 
        array (
          'format' => 'fieldset',
          'exclude' => 0,
        ),
        4 => 
        array (
          'format' => 'fieldset',
          'exclude' => 0,
        ),
        2 => 
        array (
          'format' => 'fieldset',
          'exclude' => 0,
        ),
        3 => 
        array (
          'format' => 'fieldset',
          'exclude' => 0,
        ),
        'token' => 
        array (
          'format' => 'fieldset',
          'exclude' => 0,
        ),
        'label' => NULL,
      ),
      'multigroup' => 
      array (
        'multiple-columns' => 0,
        'required' => 0,
        'multiple' => 1,
        'labels' => 
        array (
          0 => '',
          1 => '',
          2 => '',
          3 => '',
          4 => '',
          5 => '',
          6 => '',
          7 => '',
          8 => '',
          9 => '',
        ),
      ),
    ),
    'weight' => '3',
    'group_name' => 'group_test_010_multigroup',
    'parent' => '',
  ),
);
$content['fields']  = array (
  0 => 
  array (
    'label' => 'Multigroup item',
    'field_name' => 'field_test_010_multigroup_item',
    'type' => 'text',
    'widget_type' => 'text_textfield',
    'change' => 'Change basic information',
    'weight' => '4',
    'rows' => 5,
    'size' => '60',
    'description' => '',
    'default_value' => 
    array (
      0 => 
      array (
        'value' => '',
        '_error_element' => 'default_value_widget][field_test_010_multigroup_item][0][value',
      ),
    ),
    'default_value_php' => '',
    'default_value_widget' => NULL,
    'group' => 'group_test_010_multigroup',
    'required' => 0,
    'multiple' => 1,
    'text_processing' => '0',
    'max_length' => '',
    'allowed_values' => '',
    'allowed_values_php' => '',
    'op' => 'Save field settings',
    'module' => 'text',
    'widget_module' => 'text',
    'columns' => 
    array (
      'value' => 
      array (
        'type' => 'text',
        'size' => 'big',
        'not null' => false,
        'sortable' => true,
        'views' => true,
      ),
    ),
    'display_settings' => 
    array (
      'label' => 
      array (
        'format' => 'above',
        'exclude' => 0,
      ),
      'teaser' => 
      array (
        'format' => 'default',
        'exclude' => 0,
      ),
      'full' => 
      array (
        'format' => 'default',
        'exclude' => 0,
      ),
      4 => 
      array (
        'format' => 'default',
        'exclude' => 0,
      ),
      2 => 
      array (
        'format' => 'default',
        'exclude' => 0,
      ),
      3 => 
      array (
        'format' => 'default',
        'exclude' => 0,
      ),
      'token' => 
      array (
        'format' => 'default',
        'exclude' => 0,
      ),
    ),
  ),
);
$content['extra']  = array (
  'title' => '-5',
  'body_field' => '-3',
  'revision_information' => '-1',
  'author' => '-2',
  'options' => '0',
  'comment_settings' => '1',
  'menu' => '-4',
  'path' => '2',
);