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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 d39b7181f4..98215b1c9b 100644
--- a/activerecord/lib/active_record/locking/optimistic.rb
+++ b/activerecord/lib/active_record/locking/optimistic.rb
@@ -47,6 +47,7 @@ module ActiveRecord
# self.locking_column = :lock_person
# end
#
+ # Note that, optimistic locking will be ignored if you update the locking column value.
module Optimistic
extend ActiveSupport::Concern