Bug with nodeaccess grant tab

If you want to show grant tab only for some selected content types, you can choose the content types and the form will be save correctly, but then, when you see a node form, you going to see the grant tab anyway , that is because the node access module is checked incorrectly the node access-types variable:
This is the problem:

nodeaccess.module

  $allowed_types = variable_get('nodeaccess-types', array());
  if ($op == 'grant') {
    if ($node->nid && isset($allowed_types[$node->type]) &&
        (user_access('grant node permissions', $account) ||
         (user_access('grant editable node permissions', $account) && node_access('update', $node, $account)) ||
         (user_access('grant deletable node permissions', $account) && node_access('delete', $node, $account)) ||
         (user_access('grant own node permissions', $account) && ($account->uid == $node->uid)))) {
      return TRUE;
    }
  }
  return FALSE;

the code ask if exists the array $allowed_types but is not checking if the type is true or false, so allways will be true.

Solution:

  $allowed_types = variable_get('nodeaccess-types', array());
  if ($op == 'grant') {
    if ($node->nid && isset($allowed_types[$node->type]) && $allowed_types[$node->type] &&
        (user_access('grant node permissions', $account) ||
         (user_access('grant editable node permissions', $account) && node_access('update', $node, $account)) ||
         (user_access('grant deletable node permissions', $account) && node_access('delete', $node, $account)) ||
         (user_access('grant own node permissions', $account) && ($account->uid == $node->uid)))) {
      return TRUE;
    }
  }
  return FALSE;