There are two paths to show specific revision.
* http://www.redmine.org/projects/redmine/repository/revisions/5219/show
* http://www.redmine.org/projects/redmine/repository/show?rev=5219
First link is http://www.redmine.org/projects/redmine/repository/revisions/5219/changes .
But, Second link is http://www.redmine.org/projects/redmine/repository/changes .
