Show "Issues" menu when Jira issues is enabled

When GitLab issues is disabled but Jira issues enabled,
we still want to show the "Issues" menu to allow users
to access Jira issues.

This was a regression since in a previous MR, we moved
the Jira menu items from their own menu to the shared
"Issues" menu.

Changelog: fixed
EE: true

ee/lib/ee/sidebars/projects/menus/issues_menu.rb

@@ -9,7 +9,7 @@ module EE
 
           override :configure_menu_items
           def configure_menu_items
-            return false unless super
+            return false if !super && !show_jira_menu_items?
 
             add_item(iterations_menu_item)
             add_item(requirements_menu_item)
@@ -26,7 +26,8 @@ module EE
           private
 
           def iterations_menu_item
-            if !context.project.licensed_feature_available?(:iterations) ||
+            if !show_issues_menu_items? ||
+              !context.project.licensed_feature_available?(:iterations) ||
               !can?(context.current_user, :read_iteration, context.project)
               return ::Sidebars::NilMenuItem.new(item_id: :iterations)
             end
@@ -43,7 +44,8 @@ module EE
           end
 
           def requirements_menu_item
-            if !context.project.licensed_feature_available?(:requirements) ||
+            if !show_issues_menu_items? ||
+              !context.project.licensed_feature_available?(:requirements) ||
               !can?(context.current_user, :read_requirement, context.project)
               return ::Sidebars::NilMenuItem.new(item_id: :requirements)
             end

ee/spec/lib/ee/sidebars/projects/menus/issues_menu_spec.rb

@@ -7,6 +7,35 @@ RSpec.describe Sidebars::Projects::Menus::IssuesMenu do
   let(:user) { project.owner }
   let(:context) { Sidebars::Projects::Context.new(current_user: user, container: project) }
 
+  describe '#render?' do
+    let_it_be_with_refind(:project) { create(:project, has_external_issue_tracker: true) }
+    let_it_be(:jira) { create(:jira_integration, project: project, project_key: 'GL') }
+
+    let(:context) { Sidebars::Projects::Context.new(current_user: user, container: project, jira_issues_integration: jira_issues_integration) }
+    let(:jira_issues_integration) { true }
+
+    subject { described_class.new(context).render? }
+
+    context 'when user cannot read issues and Jira is not enabled' do
+      let(:user) { nil }
+      let(:jira_issues_integration) { false }
+
+      it { is_expected.to eq(false) }
+    end
+
+    context 'when user cannot read issues but Jira is enabled' do
+      let(:user) { nil }
+
+      it { is_expected.to eq(true) }
+    end
+
+    context 'when Jira is not enabled but user can read issues' do
+      let(:jira_issues_integration) { false }
+
+      it { is_expected.to eq(true) }
+    end
+  end
+
   describe 'Iterations' do
     subject { described_class.new(context).renderable_items.index { |e| e.item_id == :iterations} }
 

lib/sidebars/projects/menus/issues_menu.rb

@@ -8,7 +8,7 @@ module Sidebars
 
         override :configure_menu_items
         def configure_menu_items
-          return unless can?(context.current_user, :read_issue, context.project)
+          return false unless show_issues_menu_items?
 
           add_item(list_menu_item)
           add_item(boards_menu_item)
@@ -70,6 +70,10 @@ module Sidebars
 
         private
 
+        def show_issues_menu_items?
+          can?(context.current_user, :read_issue, context.project)
+        end
+
         def list_menu_item
           ::Sidebars::MenuItem.new(
             title: _('List'),