diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index aa36fa74624..71540cf16d7 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -4489,7 +4489,7 @@ abstract class CommonObject
 
 			if (! $db->query($sql))
 			{
-			    if ($ignoreerrors) return true;
+			    if ($ignoreerrors) return true;		// TODO Not enough. If there is A-B on kept thirdarty and B-C on old one, we must get A-B-C after merge. Not A-B. 
 				//$this->errors = $db->lasterror();
 			    return false;
 			}