Commons Browsing widget makes it impossible to export custom title fields

Motivation: A site with multiple custom content types that integrate into the browsing widget. Some of those content types should include the title field in the browsing widget while others should not.

Problem: Commons BW module defines instances of the title field on behalf of all node types. This makes it impossible to export the title field after the initial export. The export includes a hard-coded value for 'the display_in_partial_form' field.

/**
 * Creates field instance definitions for all node types.
 */
function commons_bw_field_definition(&$field_instances, $bundle) {
  // Define which of the bundles should display the title field in the partial
  // node form.
  $display_in_partial_form = array(
    'wiki' => TRUE,
  );

  // Exported field_instance: 'node-[Bundle]-title_field'
  $field_instances["node-$bundle-title_field"] = array(
    'bundle' => $bundle,
    'default_value' => NULL,
    'deleted' => '0',
    'description' => '',
    'display' => array(
      'default' => array(
        'label' => 'above',
        'settings' => array(),
        'type' => 'hidden',
        'weight' => 12,
      ),
      'teaser' => array(
        'label' => 'above',
        'settings' => array(),
        'type' => 'hidden',
        'weight' => 0,
      ),
    ),
    'display_in_partial_form' => !empty($display_in_partial_form[$bundle]),