Merge branch 'fix/cross-reference-notes-forks' into 'master'

Fix cross reference notes  on forks

Updates `cross_reference_exists?` to match on commit only.

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/5849

See merge request !2731

1 files changed, 15 insertions, 0 deletions

diff --git a/spec/services/system_note_service_spec.rb b/spec/services/system_note_service_spec.rb
index d3364a71022..1bdc03af12d 100644
--- a/spec/services/system_note_service_spec.rb
+++ b/spec/services/system_note_service_spec.rb
@@ -424,6 +424,21 @@ describe SystemNoteService, services: true do
           to be_falsey
       end
     end
+
+    context 'commit with cross-reference from fork' do
+      let(:author2) { create(:user) }
+      let(:forked_project) { Projects::ForkService.new(project, author2).execute }
+      let(:commit2) { forked_project.commit }
+
+      before do
+        described_class.cross_reference(noteable, commit0, author2)
+      end
+
+      it 'is true when a fork mentions an external issue' do
+        expect(described_class.cross_reference_exists?(noteable, commit2)).
+            to be true
+      end
+    end
   end
 
   include JiraServiceHelper