Unable to attach file to ticket

[anonymous]

Tried to attach a document to a ticket (file is a tiff file). Can select the file, but when I click add attachment, get the following:

Traceback (most recent call last):

File "C:\Python23\Lib\site-packages\trac\web\modpython_frontend.py", line 206, in handler

dispatch_request(mpr.path_info, mpr, env)

File "C:\Python23\Lib\site-packages\trac\web\main.py", line 139, in dispatch_request

dispatcher.dispatch(req)

File "C:\Python23\Lib\site-packages\trac\web\main.py", line 107, in dispatch

resp = chosen_handler.process_request(req)

File "C:\Python23\Lib\site-packages\trac\attachment.py", line 265, in process_request

self._do_save(req, attachment)

File "C:\Python23\Lib\site-packages\trac\attachment.py", line 296, in _do_save

if not upload.filename:

AttributeError?: 'StringField?' object has no attribute 'filename'

[cmlenz]

Duplicate of #554. And described on TracModPython#Win32Issues.