1 files changed, 9 insertions, 0 deletions
diff --git a/spec/services/merge_requests/build_service_spec.rb b/spec/services/merge_requests/build_service_spec.rb
index 536d0d345a4..057e8137a4e 100644
--- a/spec/services/merge_requests/build_service_spec.rb
+++ b/spec/services/merge_requests/build_service_spec.rb
@@ -229,6 +229,15 @@ describe MergeRequests::BuildService do
             end
           end
         end
+
+        context 'when a milestone is from another project' do
+          let(:milestone) { create(:milestone, project: create(:project)) }
+          let(:milestone_id) { milestone.id }
+
+          it 'sets milestone to nil' do
+            expect(merge_request.milestone).to be_nil
+          end
+        end
       end
     end