Views Calc stop working after adding link edit

When an edit link is added, the calculation stops working.
I attach screenshots before and after adding the link into view (001.png, 002.png).

View code:

$view = new view();
$view->name = 'test_calc';
$view->description = '';
$view->tag = 'default';
$view->base_table = 'node';
$view->human_name = 'test calc';
$view->core = 7;
$view->api_version = '3.0';
$view->disabled = FALSE; /* Edit this to true to make a default view disabled initially */

/* Display: Master */
$handler = $view->new_display('default', 'Master', 'default');
$handler->display->display_options['title'] = 'test calc';
$handler->display->display_options['use_more_always'] = FALSE;
$handler->display->display_options['access']['type'] = 'perm';
$handler->display->display_options['cache']['type'] = 'none';
$handler->display->display_options['query']['type'] = 'views_query';
$handler->display->display_options['exposed_form']['type'] = 'basic';
$handler->display->display_options['pager']['type'] = 'none';
$handler->display->display_options['style_plugin'] = 'views_calc';
$handler->display->display_options['style_options']['columns'] = array(
  'title' => 'title',
  'field_text' => 'field_text',
  'field_amount' => 'field_amount',
);
$handler->display->display_options['style_options']['default'] = '-1';
$handler->display->display_options['style_options']['info'] = array(
  'title' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
    'has_calc' => 0,
    'calc' => array(),
  ),
  'field_text' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
    'has_calc' => 0,
    'calc' => array(),
  ),
  'field_amount' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
    'has_calc' => 1,
    'calc' => array(
      'SUM' => 'SUM',
      'AVG' => 'AVG',
    ),
  ),
);
$handler->display->display_options['style_options']['detailed_values'] = '0';
$handler->display->display_options['style_options']['precision'] = '0';
/* Field: Content: Title */
$handler->display->display_options['fields']['title']['id'] = 'title';
$handler->display->display_options['fields']['title']['table'] = 'node';
$handler->display->display_options['fields']['title']['field'] = 'title';
$handler->display->display_options['fields']['title']['alter']['word_boundary'] = FALSE;
$handler->display->display_options['fields']['title']['alter']['ellipsis'] = FALSE;
/* Field: Content: text */
$handler->display->display_options['fields']['field_text']['id'] = 'field_text';
$handler->display->display_options['fields']['field_text']['table'] = 'field_data_field_text';
$handler->display->display_options['fields']['field_text']['field'] = 'field_text';
$handler->display->display_options['fields']['field_text']['type'] = 'text_plain';
/* Field: Content: amount */
$handler->display->display_options['fields']['field_amount']['id'] = 'field_amount';
$handler->display->display_options['fields']['field_amount']['table'] = 'field_data_field_amount';
$handler->display->display_options['fields']['field_amount']['field'] = 'field_amount';
$handler->display->display_options['fields']['field_amount']['settings'] = array(
  'thousand_separator' => '',
  'decimal_separator' => '.',
  'scale' => '2',
  'prefix_suffix' => 1,
);
/* Field: Content: Edit link */
$handler->display->display_options['fields']['edit_node']['id'] = 'edit_node';
$handler->display->display_options['fields']['edit_node']['table'] = 'views_entity_node';
$handler->display->display_options['fields']['edit_node']['field'] = 'edit_node';
$handler->display->display_options['fields']['edit_node']['label'] = 'Edit';
$handler->display->display_options['fields']['edit_node']['element_label_colon'] = FALSE;
$handler->display->display_options['fields']['edit_node']['text'] = 'Edit';
/* Sort criterion: Content: Post date */
$handler->display->display_options['sorts']['created']['id'] = 'created';
$handler->display->display_options['sorts']['created']['table'] = 'node';
$handler->display->display_options['sorts']['created']['field'] = 'created';
$handler->display->display_options['sorts']['created']['order'] = 'DESC';
/* Filter criterion: Content: Published */
$handler->display->display_options['filters']['status']['id'] = 'status';
$handler->display->display_options['filters']['status']['table'] = 'node';
$handler->display->display_options['filters']['status']['field'] = 'status';
$handler->display->display_options['filters']['status']['value'] = 1;
$handler->display->display_options['filters']['status']['group'] = 1;
$handler->display->display_options['filters']['status']['expose']['operator'] = FALSE;
/* Filter criterion: Content: Type */
$handler->display->display_options['filters']['type']['id'] = 'type';
$handler->display->display_options['filters']['type']['table'] = 'node';
$handler->display->display_options['filters']['type']['field'] = 'type';
$handler->display->display_options['filters']['type']['value'] = array(
  'test' => 'test',
);
/* Filter criterion: Content: text (field_text) */
$handler->display->display_options['filters']['field_text_value']['id'] = 'field_text_value';
$handler->display->display_options['filters']['field_text_value']['table'] = 'field_data_field_text';
$handler->display->display_options['filters']['field_text_value']['field'] = 'field_text_value';
$handler->display->display_options['filters']['field_text_value']['operator'] = 'contains';
$handler->display->display_options['filters']['field_text_value']['exposed'] = TRUE;
$handler->display->display_options['filters']['field_text_value']['expose']['operator_id'] = 'field_text_value_op';
$handler->display->display_options['filters']['field_text_value']['expose']['label'] = 'text (field_text)';
$handler->display->display_options['filters']['field_text_value']['expose']['use_operator'] = TRUE;
$handler->display->display_options['filters']['field_text_value']['expose']['operator'] = 'field_text_value_op';
$handler->display->display_options['filters']['field_text_value']['expose']['identifier'] = 'field_text_value';
$handler->display->display_options['filters']['field_text_value']['expose']['remember_roles'] = array(
  2 => '2',
  1 => 0,
  3 => 0,
);

/* Display: Page */
$handler = $view->new_display('page', 'Page', 'page');
$handler->display->display_options['path'] = 'admin/test-calc';