type error with order by, python-2.3?

[ThurnerRupert]

can it be that trac does not work with python-2.3 and $USER variable? we recently tried to use ​http://blastwave.org python and get

Traceback (most recent call last):
  File "/opt/csw/lib/python2.3/site-packages/trac/web/main.py", line 387, in dispatch_request
    dispatcher.dispatch(req)
  File "/opt/csw/lib/python2.3/site-packages/trac/web/main.py", line 237, in dispatch
    resp = chosen_handler.process_request(req)
  File "/opt/csw/lib/python2.3/site-packages/trac/ticket/report.py", line 88, in process_request
    resp = self._render_view(req, db, id)
  File "/opt/csw/lib/python2.3/site-packages/trac/ticket/report.py", line 346, in _render_view
    value['date'] = format_date(cell)
  File "/opt/csw/lib/python2.3/site-packages/trac/util/datefmt.py", line 68, in format_date
    return format_datetime(t, format, gmt)
  File "/opt/csw/lib/python2.3/site-packages/trac/util/datefmt.py", line 58, in format_datetime
    t = time.localtime(float(t))
ValueError: invalid literal for float(): Rupert

the report query causing this is

SELECT
   summary,
   t.time AS created,
   reporter AS 'created by',
   changetime AS modified,
   description AS _description   
  FROM ticket t
ORDER by owner,created

with old instance, python-2.5, it used to work.

[ThurnerRupert]

the above first sentence is incorrect. $user was the first guess, but when reducing the query it we noticed it had nothing to do with it.

[Christian Boos]

Should be fixed by r5754. Duplicate of #4547.