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-rw-r--r--activerecord/lib/active_record/associations/has_many_association.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb
index 660e005348..d00ac96540 100644
--- a/activerecord/lib/active_record/associations/has_many_association.rb
+++ b/activerecord/lib/active_record/associations/has_many_association.rb
@@ -114,7 +114,7 @@ module ActiveRecord
begin
if !loaded?
if @target.is_a?(Array) && @target.any?
- @target = find_target + @target
+ @target = (find_target + @target).uniq
else
@target = find_target
end