unscriptable object

[anonymous]

I have started getting this odd error when trying to update the description of a ticket. It onoy seems to happen to one ticket, and it started 'out of the blue', I made one succesful change and then every change after has resulted in ....

Oops...
Trac detected an internal error:

unsubscriptable object

Python traceback

Traceback (most recent call last):
  File "c:\python23\Lib\site-packages\trac\core.py", line 541, in cgi_start
    real_cgi_start()
  File "c:\python23\Lib\site-packages\trac\core.py", line 536, in real_cgi_start
    dispatch_request(path_info, args, req, env)
  File "c:\python23\Lib\site-packages\trac\core.py", line 451, in dispatch_request
    module.run()
  File "c:\python23\Lib\site-packages\trac\Module.py", line 41, in run
    self.render()
  File "c:\python23\Lib\site-packages\trac\Ticket.py", line 456, in render
    self.save_changes (id)
  File "c:\python23\Lib\site-packages\trac\Ticket.py", line 378, in save_changes
    when=now)
  File "c:\python23\Lib\site-packages\trac\Ticket.py", line 143, in save_changes
    self['owner'] = cursor.fetchone()[0]
TypeError: unsubscriptable object

trac 1189, winXP, apache2

[cmlenz]

This is a duplicate of #1045.