From ebf6bffe08e7dbcb4e36cf266c639eaa49e05d5d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Tue, 6 Oct 2009 14:27:30 +0200
Subject: [PATCH] Allow to modify tax lines from canceled invoice for issue1214

---
 invoice.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/invoice.py b/invoice.py
index ab31fc4827..a8216a32f0 100644
--- a/invoice.py
+++ b/invoice.py
@@ -1890,7 +1890,7 @@ class InvoiceTax(ModelSQL, ModelView):
         Check if the taxes can be modified
         '''
         for tax in self.browse(cursor, user, ids, context=context):
-            if tax.invoice.state in ('open', 'paid', 'cancel'):
+            if tax.invoice.state in ('open', 'paid'):
                 self.raise_user_error(cursor, 'modify',
                         context=context)
         return