TypeError: expected string or buffer

[anonymous]

How to Reproduce

While doing a GET operation on /report/1, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{'id': u'1'}

User agent: Mozilla/5.0 (Windows NT 6.1; rv:19.0) Gecko/20100101 Firefox/19.0

System Information

System information not available

Enabled Plugins

Plugin information not available

Python Traceback

Traceback (most recent call last):
  File "/usr/local/virtualenv/1.1dev/lib/python2.6/site-packages/Trac-1.1.1dev_r11538-py2.6.egg/trac/web/main.py", line 497, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/local/virtualenv/1.1dev/lib/python2.6/site-packages/Trac-1.1.1dev_r11538-py2.6.egg/trac/web/main.py", line 214, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/local/virtualenv/1.1dev/lib/python2.6/site-packages/Trac-1.1.1dev_r11538-py2.6.egg/trac/ticket/report.py", line 181, in process_request
    template, data, content_type = self._render_view(req, id)
  File "/usr/local/virtualenv/1.1dev/lib/python2.6/site-packages/Trac-1.1.1dev_r11538-py2.6.egg/trac/ticket/report.py", line 427, in _render_view
    'description': sub_vars(description, args),
  File "/usr/local/virtualenv/1.1dev/lib/python2.6/site-packages/Trac-1.1.1dev_r11538-py2.6.egg/trac/util/text.py", line 722, in sub_vars
    return sub_vars_re.sub(repl, text)
TypeError: expected string or buffer

[Remy Blank]

Duplicate of #11033 (and fixed on trunk already).

(Why is the version field not populated?)