Can you open a ticket in Trac with your patch attached. That will be
much easier to track than in the mailing list. Thanks.
For the record, this bug exists in trunk, also. I'm going to take a
look at it now...
Adrian
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Adrian Holovaty
holovaty.com | everyblock.com | djangoproject.com
Thanks for reporting this, Marco. Turns out the bug was a few layers
deeper -- it was in the handling of dates(), not in the admin code.
I've fixed it in [7486] and added unit tests in [7485].