Documents: 2011-2012 is not directly reachable

One-sentence description

The documents page should switch to the year 2011-2012 when it is selected from the drop-down box.

Current behaviour

The documents page does not switch to the year 2011-2012 when it is selected from the drop-down box.

Expected behaviour

The documents page switches to the year 2011-2012 when it is selected from the drop-down box.

Steps to reproduce

1. Log in
2. Go to the /documents/ page (e.g. Association -> Documents).
3. Navigate to "General meetings"
4. Click on 2011-2012 (a dropdown box appears)
5. Click on 2011-2012 in the dropdown box
6. Nothing happens.

Alternatively, replace step 5 by clicking on another item (e.g. 2010-2011) and then execute the original step 4 and 5 again. In that case, step 6 is replaced by the expected behaviour.

Note: the period (i.e. 2011-2012) is relative to the current period. When we switch to the next year, this period will be 2012-2013.