diff -r caeb4c8b5487 -r ba6b8e38d90e Entity/TagRepository.php
--- a/Entity/TagRepository.php	Wed Dec 14 23:53:37 2011 +0100
+++ b/Entity/TagRepository.php	Mon Dec 19 17:50:04 2011 +0100
@@ -31,7 +31,7 @@
     public function getCompletion($seed)
     {
         $qb = $this->getEntityManager()->createQueryBuilder();
-        $qb->select('t.label');
+        $qb->select('DISTINCT t.label');
         $qb->from('WikiTagBundle:Tag','t');
         $qb->where($qb->expr()->orx(
             $qb->expr()->like('t.label',$qb->expr()->literal(addcslashes(mysql_real_escape_string($seed),"%_")."%")),
@@ -56,6 +56,7 @@
         $tag_label_normalized = WikiTagUtils::normalizeTag($tag_label);
         // We get the wikipedia references for the tag_label
         // We get or create the tag object
+        // TODO: search also in work unit ?
         $tags = $this->findBy(array('normalizedLabel' => $tag_label_normalized));
         $tag = null;
         foreach ($tags as $t) {
@@ -92,7 +93,6 @@
             // Save datas.
             $em = $this->getEntityManager();
             $em->persist($tag);
-            $em->flush();
                 
             $wikipedia_revision_id = $wp_response['revision_id'];