Internal error when selecting the year link on the calendar panel

[jfeid@…]

Selecting the year link on the calendar panel to show all the postings for the year, trac responds with the following error:

Traceback (most recent call last):
  File "C:\Python24\Lib\site-packages\trac\web\main.py", line 406, in dispatch_request
    dispatcher.dispatch(req)
  File "C:\Python24\Lib\site-packages\trac\web\main.py", line 237, in dispatch
    resp = chosen_handler.process_request(req)
  File "build\bdist.win32\egg\tBlog\web_ui.py", line 235, in process_request
  File "build\bdist.win32\egg\tBlog\web_ui.py", line 268, in _generate_blog
  File "build\bdist.win32\egg\tBlog\web_ui.py", line 578, in _get_time_range
TypeError: unsupported operand type(s) for +=: 'datetime.datetime' and 'NoneType'

Environment:

 * Trac 0.10.4
 * tracwebadmin 0.1.2dev-r4429
 * tractags 0.4
 * tBlog 0.2.2dev

[muelli@…]

patch in #1073 fixes that issue

[John Hampton]

(In [2403])

• Fixed bug introduced by [2397] where selecting only a year would generate a traceback
• Fixes #1750