I have an editable date in my issue.item.html file
which is _always_ updated by roundup upon submit even
if the textfield is left untouched.

Since the value in the DB is stored as UTC but
displayed in the local timezone, you can't take back
that displayed value and just stuff it back in the DB.
 tried to figure where this is happening, but i can't
see it in the code.. sorry.

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The local timezone offset is added twice on date fields:
- when going from input field to db storage
- when going from db storage to web display

This results in datetime entries autoincrementing by 2x the
local timezone offset on each edit of an issue.

Local timezone offset should be _substracted_ from the input
value when storing into the db, not added.

When I enter a new deadline through the input field::
2004-09-25

my database says::
>>> db.project.get(8,'deadline')
<Date 2004-09-25.02:00:0.000000>

which displays in the web interface as::
2004-09-25.04:00:00 

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user_id=6405

I have modified the input parser to apply the timezone in the 
correct direction.