Merge pull request #11649 from ptibogxiv/patch-216

FIX qty in invoice list on product's stats

htdocs/product/stats/facture.php

@@ -234,7 +234,9 @@ if ($id > 0 || ! empty($ref))
                     while ($i < min($num, $limit))
 					{
                         $objp = $db->fetch_object($result);
-
+						
+						if ($objp->type == Facture::TYPE_CREDIT_NOTE) $objp->qty=-($objp->qty);
+						
                         $total_ht+=$objp->total_ht;
                         $total_qty+=$objp->qty;