Incorporate the review and update spec

CHANGELOG

@@ -4,6 +4,7 @@ v 8.6.0 (unreleased)
   - Bump gitlab_git to 9.0.3 (Stan Hu)
   - Support Golang subpackage fetching (Stan Hu)
   - Bump Capybara gem to 2.6.2 (Stan Hu)
+  - New branch button appears on issues where applicable
   - Contributions to forked projects are included in calendar
   - Improve the formatting for the user page bio (Connor Shea)
   - Removed the default password from the initial admin account created during
@@ -59,7 +60,6 @@ v 8.5.3
   - Show commit message in JIRA mention comment
   - Makes issue page and merge request page usable on mobile browsers.
   - Improved UI for profile settings
-  - New branch button appears on issues where applicable
 
 v 8.5.2
   - Fix sidebar overlapping content when screen width was below 1200px

app/models/issue.rb

@@ -87,20 +87,20 @@ class Issue < ActiveRecord::Base
   end
 
   def referenced_merge_requests(current_user = nil)
-    if defined?(@referenced_merge_requests)
-      @referenced_merge_requests[current_user] ||=  Gitlab::ReferenceExtractor.lazily do
-                                                      [self, *notes].flat_map do |note|
-                                                        note.all_references(current_user).merge_requests
-                                                      end
-                                                    end.sort_by(&:iid).uniq
-    else
-      @referenced_merge_requests = {}
-      referenced_merge_requests(current_user)
+    @referenced_merge_requests ||= {}
+    @referenced_merge_requests[current_user] ||= begin
+      Gitlab::ReferenceExtractor.lazily do
+        [self, *notes].flat_map do |note|
+          note.all_references(current_user).merge_requests
+        end
+      end.sort_by(&:iid).uniq
     end
   end
 
   def related_branches
-    self.project.repository.branch_names.select { |branch| branch.start_with? "#{iid}-" }
+    self.project.repository.branch_names.select do |branch|
+      branch =~ /\A#{iid}-(?!\d+-stable)/i
+    end
   end
 
   # Reset issue events cache
@@ -138,6 +138,6 @@ class Issue < ActiveRecord::Base
     !self.closed? &&
       !self.project.forked? &&
       self.related_branches.empty? &&
-      self.referenced_merge_requests(current_user).empty?
+      self.closed_by_merge_requests(current_user).empty?
   end
 end

app/services/system_note_service.rb

@@ -213,9 +213,9 @@ class SystemNoteService
   #   "Started branch `201-issue-branch-button`"
   def self.new_issue_branch(issue, project, author, branch)
     h = Gitlab::Application.routes.url_helpers
-    link = "#{h.namespace_project_compare_url(project.namespace, project, from: project.default_branch, to: branch)}"
+    link = h.namespace_project_compare_url(project.namespace, project, from: project.default_branch, to: branch)
 
-    body = "Started branch [#{branch}](#{link})"
+    body = "Started branch [`#{branch}`](#{link})"
     create_note(noteable: issue, project: project, author: author, note: body)
   end
 

spec/features/issues/new_branch_button_spec.rb

@@ -18,14 +18,13 @@ feature 'Start new branch from an issue', feature: true do
     end
 
     context "when there is a referenced merge request" do
-      let(:note) do 
+      let(:note) do
         create(:note, :on_issue, :system, project: project,
-                                          note: "mentioned in !#{referenced_mr.iid}") 
+                                          note: "mentioned in !#{referenced_mr.iid}")
       end
-      let(:referenced_mr) do 
-        create(:merge_request, source_project: project,
-                               target_project: project,
-                               description: "Fixes ##{issue.iid}") 
+      let(:referenced_mr) do
+        create(:merge_request, :simple, source_project: project, target_project: project,
+                                description: "Fixes ##{issue.iid}")
       end
 
       before do

spec/services/system_note_service_spec.rb

@@ -287,7 +287,7 @@ describe SystemNoteService, services: true do
 
     context 'when a branch is created from the new branch button' do
       it 'sets the note text' do
-        expect(subject.note).to eq 'Started branch 1-mepmep'
+        expect(subject.note).to match /\AStarted branch [`1-mepmep`]/
       end
     end
   end