PDOException when saving node after previewing

I'm adding embedded videos to nodes via Embedded Media Field (emfield), but I get an error with DailyMotion in a specific instance. Other Media providers (YouTube and Vimeo specifically, work fine).

If I preview my node before saving, I am unable to actually save the node with the embedded media due to an error..

PDOException: SQLSTATE[23000]:
Integrity constraint violation: 1062 Duplicate entry 'dailymotion://video_id/x1571hb' for key 'uri': INSERT INTO {file_managed} (uid, filename, uri, filemime, filesize, status, timestamp, type) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4, :db_insert_placeholder_5, :db_insert_placeholder_6, :db_insert_placeholder_7); Array ( [:db_insert_placeholder_0] => 1 [:db_insert_placeholder_1] => x1571hb [:db_insert_placeholder_2] => dailymotion://video_id/x1571hb [:db_insert_placeholder_3] => video/dailymotion [:db_insert_placeholder_4] => 0 [:db_insert_placeholder_5] => 1 [:db_insert_placeholder_6] => 1380751246 [:db_insert_placeholder_7] => video ) in drupal_write_record() (line 7139 of /site/includes/common.inc).

It looks like Media:DailyMotion is saving the file object in getFileObject() without passing anything to the optional $use_existing parameter. It looks like this parameter in file_uri_to_object in Media module is false by default, so it's trying to add the same file again instead of using the existing object.

Anyhow, changing this:

  public function getFileObject() {
    $uri = $this->parse($this->embedCode);
    return file_uri_to_object($uri);
  }

To this:

  public function getFileObject() {
    $uri = $this->parse($this->embedCode);
    return file_uri_to_object($uri, TRUE);
  }

fixed things for me.

Proposed patch w/ changes noted above attached.