Specify controller actions for service desk nav links.

app/views/layouts/nav/sidebar/_project.html.haml

@@ -110,7 +110,7 @@
                 = number_with_delimiter(@project.open_issues_count)
 
           %ul.sidebar-sub-level-items
-            = nav_link(controller: :issues, html_options: { class: "fly-out-top-item" } ) do
+            = nav_link(controller: :issues, action: :index, html_options: { class: "fly-out-top-item" } ) do
               = link_to project_issues_path(@project) do
                 %strong.fly-out-top-item-name
                   #{ _('Issues') }
@@ -138,7 +138,7 @@
                 %span
                   Milestones
 
-            = nav_link(controller: :service_desk) do
+            = nav_link(controller: [ :issues, :service_desk ]) do
               = link_to service_desk_project_issues_url(@project), title: 'Service Desk' do
                 %span Service Desk