"Replace existing feed nodes" - how to get this option working?

Can anyone help here?

Any ideas why when using the option "Replace existing feed nodes", I keep getting "There is no new content."?

I can add new feed nodes, but I can't update them.

cheers
scotjam

The test which I've done is to use the same csv file with and without the 'Replace existing feed nodes' option set.

Without the option set, I'm able to import the feeds, but with the option set, the batch runs as you'd expect but the response is 'There is no new content'.

So, from that I taken it that the csv file is fine.

Is this a bug then?

...checked. 'unique target' is set.

Next, I've just installed drupal using the feeds profile, created a feed node importer, and set the options as I normally would. But still no joy! I've attached the export of the test feed node importer, and a test csv file with dummy data.

$feeds_importer = new stdClass;
$feeds_importer->disabled = FALSE; /* Edit this to true to make a default feeds_importer disabled initially */
$feeds_importer->api_version = 1;
$feeds_importer->id = 'test_feed_node_importer_updates';
$feeds_importer->config = array(
  'name' => 'test feed node importer updates',
  'description' => '',
  'fetcher' => array(
    'plugin_key' => 'FeedsFileFetcher',
    'config' => array(
      'direct' => FALSE,
    ),
  ),
  'parser' => array(
    'plugin_key' => 'FeedsCSVParser',
    'config' => array(
      'delimiter' => ',',
    ),
  ),
  'processor' => array(
    'plugin_key' => 'FeedsFeedNodeProcessor',
    'config' => array(
      'content_type' => 'feed',
      'update_existing' => 1,
      'mappings' => array(
        0 => array(
          'source' => 'json_feed',
          'target' => 'source',
          'unique' => 1,
        ),
        1 => array(
          'source' => 'title',
          'target' => 'title',
          'unique' => FALSE,
        ),
      ),
    ),
  ),
  'content_type' => '',
  'update' => 0,
  'import_period' => 1800,
  'expire_period' => 3600,
  'import_on_create' => TRUE,
);

title,json_feed
1,http://www.example.com
2,www.example.com
3,http://www.example.com/test.txt

I must be doing something really silly here, but I can't tell what!

So, its a bug then. Hope to be proved wrong :)

Bug is, CSV files don't work when using Feed Node Processor with 'unique target' set.