1 files changed, 8 insertions, 0 deletions
diff --git a/spec/models/concerns/ignorable_columns_spec.rb b/spec/models/concerns/ignorable_columns_spec.rb
index a5eff154a0b..c97dc606159 100644
--- a/spec/models/concerns/ignorable_columns_spec.rb
+++ b/spec/models/concerns/ignorable_columns_spec.rb
@@ -59,6 +59,14 @@ RSpec.describe IgnorableColumns do
       it_behaves_like 'storing removal information'
     end
 
+    context 'when called on a subclass without setting the ignored columns' do
+      let(:subclass) { Class.new(record_class) }
+
+      it 'does not raise Deadlock error' do
+        expect { subclass.ignored_columns_details }.not_to raise_error
+      end
+    end
+
     it 'defaults to empty Hash' do
       expect(subject.ignored_columns_details).to eq({})
     end