Fix get_list_orders, if r['purchase_id'] is False

reception/models.py

@@ -32,6 +32,7 @@ class CagetteReception(models.Model):
                 pids = []
                 if res and len(res) > 0:
                     for r in res:
+                        if r['purchase_id']:  #  May be False
                            pids.append(int(r['purchase_id'][0]))
 
             if len(pids):