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-rw-r--r--app/models/concerns/protected_ref.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/app/models/concerns/protected_ref.rb b/app/models/concerns/protected_ref.rb
index dbe8d31de37..e62e680af6e 100644
--- a/app/models/concerns/protected_ref.rb
+++ b/app/models/concerns/protected_ref.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
module ProtectedRef
extend ActiveSupport::Concern