Fix #8966 Remove Milestones/Labels from project navbar when Isses disabled

app/helpers/projects_helper.rb

@@ -146,6 +146,10 @@ module ProjectsHelper
       nav_tabs << feature if project.send :"#{feature}_enabled"
     end
 
+    if project.issues_enabled
+      nav_tabs << [:milestones, :labels]
+    end
+
     nav_tabs.flatten
   end
 

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

@@ -44,7 +44,7 @@
           %span
             Graphs
 
-    - if project_nav_tab? :issues
+    - if project_nav_tab? :milestones
       = nav_link(controller: :milestones) do
         = link_to namespace_project_milestones_path(@project.namespace, @project), title: 'Milestones' do
           %i.fa.fa-clock-o
@@ -68,7 +68,7 @@
             Merge Requests
             %span.count.merge_counter= @project.merge_requests.opened.count
 
-    - if project_nav_tab? :issues
+    - if project_nav_tab? :labels
       = nav_link(controller: :labels) do
         = link_to namespace_project_labels_path(@project.namespace, @project), title: 'Labels' do
           %i.fa.fa-tags