Fix sorting for roadmaps

ee/app/controllers/concerns/epics_actions.rb

@@ -13,4 +13,13 @@ module EpicsActions
   def default_sort_order
     sort_value_recently_created
   end
+
+  def update_cookie_value(value)
+    case value
+    when 'start_date_asc'  then sort_value_start_date
+    when 'end_date_asc'    then sort_value_end_date
+    else
+      super(value)
+    end
+  end
 end

ee/app/controllers/groups/roadmap_controller.rb

@@ -7,7 +7,7 @@ module Groups
     before_action :check_epics_available!
     before_action :group
     before_action :persist_roadmap_layout, only: [:show]
-    before_action :set_epics_sorting, only: :index
+    before_action :set_epics_sorting, only: :show
 
     def show
       # show roadmap for a group