Documents: 2011-2012 is not directly reachable

Ghost User
2017-12-10T21:10:48+01:00

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`.