Invite doesn't work if Force users to login is checked

The following peace of code in commons.module prevents Invite from working correctly

 //  Force anonymous users to a login page
  if (variable_get('commons_force_login', 0)) {
    global $user;
  
    // If anonymous
    if (!$user->uid) {
      //  Avoid endless redirect and allow for user registration/creation/login
      //  Checking arg(1) for numeric value prevents /user/# path
      if (arg(0) != 'user' || is_numeric(arg(1))) {
        // Redirect to home
        if ($dest = $_GET['q']) {
          // If the user was trying to reach a certain page,
          // try to preserve the redirection after login
          drupal_goto('user', "destination=$dest");
        }
        else {
          drupal_goto('user');
        }
      }
    }
  }

It redirects all not logged in users to login page thus preventing invitation code to validate.
The "invite/accept" path should not be redirected.

This can be fixed with following code change

 //  Force anonymous users to a login page
  if (variable_get('commons_force_login', 0)) {
    global $user;
  
    // If anonymous
    if (!$user->uid) {
      //  Avoid endless redirect and allow for user registration/creation/login
      // Avoid invite/accept from redirect
      if ((arg(0) == 'invite') && (arg(1) == 'accept')) return;
      //  Checking arg(1) for numeric value prevents /user/# path
      if (arg(0) != 'user' || is_numeric(arg(1))) {
        // Redirect to home
        if ($dest = $_GET['q']) {
          // If the user was trying to reach a certain page,
          // try to preserve the redirection after login
          drupal_goto('user', "destination=$dest");
        }
        else {
          drupal_goto('user');
        }
      }
    }
  }