[FIX] wms: fix lookup of xmlid route_warehouse0_buy

Fixes #2610 courtesy of gurneyalex

addons/purchase/stock.py

@@ -174,7 +174,7 @@ class stock_warehouse(osv.osv):
         route_obj = self.pool.get('stock.location.route')
         data_obj = self.pool.get('ir.model.data')
         try:
-            buy_route_id = data_obj.get_object_reference(cr, uid, 'stock', 'route_warehouse0_buy')[1]
+            buy_route_id = data_obj.get_object_reference(cr, uid, 'purchase', 'route_warehouse0_buy')[1]
         except:
             buy_route_id = route_obj.search(cr, uid, [('name', 'like', _('Buy'))], context=context)
             buy_route_id = buy_route_id and buy_route_id[0] or False