wrong primary key on hosting_client_user table

I realise that the client feature of hosting module is still buggy and this might solve things a bit
The db schema:

  $schema['hosting_client_user'] = array(
    'fields' => array(
      'user' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'client' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'contact_type' => array(
        'type' => 'text',
        'size' => 'big',
        'not null' => TRUE,
      ),
    ),
    'primary key' => array('user'),
  );

should be

  $schema['hosting_client_user'] = array(
    'fields' => array(
      'client' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'user' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'contact_type' => array(
        'type' => 'text',
        'size' => 'big',
        'not null' => TRUE,
      ),
    ),
    'primary key' => array('client'),
  );

this change got rid of the dreaded "Duplicate entry '1' for key 1" when adding a new client

HTH