[Statistics view] Mysql2::Error: Unknown column 'changes.commit_date' in 'order clause'

[niosHD]

Created new bug like requested in #322.

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I just upgraded to the recent development version of the plugin and redmine 3.0.0 and want to report another SQL problem which is related to the statistic functionality.

The Query from repository_commits_stats.rb#L133 crashes with the following error:

Mysql2::Error: Unknown column 'changes.commit_date' in 'order clause': SELECT COUNT(*) AS count_all, commit_date AS commit_date FROM `changes` INNER JOIN `changesets` ON `changesets`.`id` = `changes`.`changeset_id` WHERE (changesets.repository_id = 11) GROUP BY commit_date  ORDER BY `changes`.`commit_date` ASC

I suspect that it is a result of the active record update which came with the new redmine.