Diff between Branches

[Carles Pina i Estany]

Hi,

I'm novice with Bazaar.
I would like to diff between gettext branch and trunk. I did:

bzr branch http://bzr.savannah.gnu.org/r/grub/people/robertmh/gettext/
cd gettext
bzr diff -r branch:http://bzr.savannah.gnu.org/r/ub/trunk/grub

But I have some unexpected results like adding files and removing files
that I would not expect: 

=== added file 'AUTHORS'
--- AUTHORS     1970-01-01 00:00:00 +0000
+++ AUTHORS     2009-10-31 12:19:08 +0000

and then:
=== removed file 'AUTHORS'
--- AUTHORS     2005-09-03 16:54:27 +0000
+++ AUTHORS     1970-01-01 00:00:00 +0000

The content of the "old2 and "new" AUTHORS files looks similar, even
though the date is not similar :-)

Am I doing something in the incorrect way? Or I'm doing it in bad
timing?

Thanks,

-- 
Carles Pina i Estany
        http://pinux.info