lib/rubocop/cop/rails/uniq_before_pluck.rb in rubocop-rails-2.7.1 vs lib/rubocop/cop/rails/uniq_before_pluck.rb in rubocop-rails-2.8.0

@@ -16,9 +16,11 @@
       # distinct are added as offenses. This may lead to false positives
       # as the cop cannot distinguish between calls to pluck on an
       # ActiveRecord::Relation vs a call to pluck on an
       # ActiveRecord::Associations::CollectionProxy.
       #
+      # This cop is unsafe because the behavior may change depending on the
+      # database collation.
       # Autocorrect is disabled by default for this cop since it may generate
       # false positives.
       #
       # @example EnforcedStyle: conservative (default)
       #   # bad