Bad module info for updates in core

On /admin/modules i get error:

Notice: Undefined index: version_major in function update_calculate_project_update_status() (line 595 in file /modules/update/update.compare.inc).

Debug:

array (
  'name' => 'userpoints ',
  'version' => '',
  'tag' => '7.x-1.0-alpha1',
  'status' => 'published',
  'release_link' => 'http://drupal.org/node/1002752',
  'download_link' => 'http://ftp.drupal.org/files/projects/userpoints-.tar.gz',
  'date' => '1292799077',
  'mdhash' => 'aef0ad58c6ec238160baff7113ee6a3d',
  'filesize' => '73632',
  'files' => '
   
   
  ',
  'terms' => 
  array (
    'Release type' => 
    array (
      0 => 'New features',
      1 => 'Bug fixes',
    ),
  ),
)