Steps to reproduce the issue

Place a standard Articles - Archive module, set it to show 10 months

Expected result

List of 10 year/month Links to the archive component

Actual result

List of 10 links to february 2015.

System information (as much as possible)

Joomla 3.4.0
MySQL 5.6.21

Additional comments

Seems to be a problem in modules/mod_articles_archive/helper.php

The query has been changed from

    $query->select($query->month($db->quoteName('created')) . ' AS created_month')
        ->select('created, id, title')
        ->select($query->year($db->quoteName('created')) . ' AS created_year')
        ->from('#__content')
        ->where('state = 2 AND checked_out = 0')
        ->group('created_year DESC, created_month DESC');

to

    $query->select($query->month($db->quoteName('created')) . ' AS created_month')
        ->select('created, id, title')
        ->select($query->year($db->quoteName('created')) . ' AS created_year')
        ->from('#__content')
        ->where('state = 2 AND checked_out = 0')
        ->group('created_year, created_month, created, id, title')
        ->order('created_year DESC, created_month DESC');