=== modified file 'account/account_move_line.py'
--- old/account/account_move_line.py	2009-04-27 14:49:26 +0000
+++ new/account/account_move_line.py	2009-07-03 13:34:38 +0000
@@ -835,9 +835,8 @@
         if ('account_id' in vals):
             account = account_obj.browse(cr, uid, vals['account_id'])
             if journal.type_control_ids:
-                type = account.user_type
                 for t in journal.type_control_ids:
-                    if type==t.code:
+                    if t.code == account.user_type.type.code:
                         ok = True
                         break
             if journal.account_control_ids and not ok: