Guidelines

purchase.py

@@ -1488,7 +1488,9 @@ class Move(OSV):
             fnct_search='search_supplier', select=1)
 
     exception_state = fields.Function('get_exception_state', type='selection',
-            selection=[('ignored', 'Ignored'), ('duplicated', 'Duplicated')],
+            selection=[('', ''),
+                       ('ignored', 'Ignored'),
+                       ('duplicated', 'Duplicated')],
             string='Exception State')
 
     def get_purchase(self, cursor, user, ids, name, arg, context=None):

purchase.xml

@@ -164,7 +164,7 @@ this repository contains the full copyright notices and license terms. -->
                         <separator string="Choose move to duplicate"
                                    id="choose"/>
                         <field name="duplicate_moves">
-                          <tree string="Duplicate Moves"  fill="1">
+                          <tree string="Duplicate Moves" fill="1">
                               <field name="product"/>
                               <field name="quantity"/>
                               <field name="uom"/>