Fix : no origin on stock mvmt when order set back to draft

htdocs/commande/class/commande.class.php

@@ -464,6 +464,7 @@ class Commande extends CommonOrder
                     if ($this->lines[$i]->fk_product > 0)
                     {
                         $mouvP = new MouvementStock($this->db);
+                        $mouvP->origin = &$this;
                         // We increment stock of product (and sub-products)
                         $result=$mouvP->reception($user, $this->lines[$i]->fk_product, $idwarehouse, $this->lines[$i]->qty, 0, $langs->trans("OrderBackToDraftInDolibarr",$this->ref));
                         if ($result < 0) { $error++; $this->error=$mouvP->error; break; }