[IMP] stock: order rule by sequence,id instead of sequence,name

The purpose is to define a better sequence order by default.
Rules's name generation is base on their location and warehouse name.
Since locations order is not always the same than the alphabetical
order, we would rather use the id.

addons/stock/models/stock_rule.py

@@ -21,7 +21,7 @@ class StockRule(models.Model):
     """ A rule describe what a procurement should do; produce, buy, move, ... """
     _name = 'stock.rule'
     _description = "Stock Rule"
-    _order = "sequence, name"
+    _order = "sequence, id"
 
     name = fields.Char(
         'Name', required=True, translate=True,