Altering User List Page Filter field

Hi,

Need help/suggestion on code implementation, I'm altering the User List Page View"/admin/people/list" Filter field type="textfield" to autocomplete through below code, but filtering stopped working, need help in resolving this issue.

function knowitall_alters_form_views_exposed_form_alter(&$form, &$form_state) {
  if($form['#id'] == 'views-exposed-form-user-admin-people-page-1') {
    $form['field_partner_target_id'] = array(
      '#type' => 'entity_autocomplete',
      '#target_type' => 'node',
      '#title' => t('Partner or School District'),
      '#selection_settings' => array(
            'target_bundles' => array('partner'),
            ),    
      );
  }
}