Show category tabs on list even when no epics exist in the group

ee/app/views/groups/epics/index.html.haml

-- has_filters_applied = params[:label_name].present? || params[:author_username].present? || params[:search].present?
-
 - page_title "Epics"
 
-- if has_filters_applied || @epics.to_a.any?
-  .top-area
-    = render 'shared/issuable/epic_nav', type: :epics
-    .nav-controls
-      - if can?(current_user, :create_epic, @group)
-        #new-epic-app{ data: { endpoint: request.url, 'align-right' => true } }
+.top-area
+  = render 'shared/issuable/epic_nav', type: :epics
+  .nav-controls
+    - if can?(current_user, :create_epic, @group)
+      #new-epic-app{ data: { endpoint: request.url, 'align-right' => true } }
 
-  = render 'shared/epic/search_bar', type: :epics
+= render 'shared/epic/search_bar', type: :epics
 
 - if @epics.to_a.any?
   = render 'shared/epics'

ee/spec/features/epics/epics_list_spec.rb

@@ -119,13 +119,23 @@ describe 'epics list', :js do
   end
 
   context 'when no epics exist for the group' do
-    it 'renders the empty list page' do
+    before do
       visit group_epics_path(group)
+    end
 
+    it 'renders the empty list page' do
       within('#content-body') do
         expect(find('.empty-state h4'))
           .to have_content('Epics let you manage your portfolio of projects more efficiently and with less effort')
       end
     end
+
+    it 'shows epics tabs for each status type' do
+      page.within('.epics-state-filters') do
+        expect(page).to have_selector('li > a#state-opened')
+        expect(page).to have_selector('li > a#state-closed')
+        expect(page).to have_selector('li > a#state-all')
+      end
+    end
   end
 end