Wiki Attachments failing with "Attachment Not Found" message as of rev. 1454

[jason@…]

I'm running against svn trunk rev 1454. When attempting to create an attachment on a wiki page, I get an error message: "Attachment not found"

No traceback is visible on the webpage — I enabled file logging, and got this traceback in the log:

10:51:38 Trac[attachment] DEBUG: Trying to open attachment at /var/lib/trac/aos/attachments/wiki/SandBox
10:51:38 Trac[main] ERROR: Attachment not found
10:51:38 Trac[main] ERROR: Traceback (most recent call last):
  File "/usr/lib/python2.3/site-packages/trac/web/modpython_frontend.py", line 168, in handler
    dispatch_request(mpr.path_info, mpr, env)
  File "/usr/lib/python2.3/site-packages/trac/web/main.py", line 305, in dispatch_request
    module.render(req)
  File "/usr/lib/python2.3/site-packages/trac/attachment.py", line 63, in render
    self.render_view(req, parent_type, parent_id, filename)
  File "/usr/lib/python2.3/site-packages/trac/attachment.py", line 130, in render_view
    raise util.TracError('Attachment not found')
TracError: Attachment not found