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-rw-r--r--activerecord/lib/active_record/locking/optimistic.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/locking/optimistic.rb b/activerecord/lib/active_record/locking/optimistic.rb
index 604da5a4fd..a3412582fa 100644
--- a/activerecord/lib/active_record/locking/optimistic.rb
+++ b/activerecord/lib/active_record/locking/optimistic.rb
@@ -46,6 +46,7 @@ module ActiveRecord
# class Person < ActiveRecord::Base
# self.locking_column = :lock_person
# end
+ #
module Optimistic
extend ActiveSupport::Concern