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-rw-r--r--activerecord/lib/active_record/attribute_assignment.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/attribute_assignment.rb b/activerecord/lib/active_record/attribute_assignment.rb
index 6f6fc13d16..a54c103476 100644
--- a/activerecord/lib/active_record/attribute_assignment.rb
+++ b/activerecord/lib/active_record/attribute_assignment.rb
@@ -106,7 +106,7 @@ module ActiveRecord
# assign any deferred nested attributes after the base attributes have been set
nested_parameter_attributes.each { |k,v| _assign_attribute(k, v) }
- assign_multiparameter_attributes(multi_parameter_attributes)
+ assign_multiparameter_attributes(multi_parameter_attributes) unless multi_parameter_attributes.empty?
ensure
@mass_assignment_options = previous_options
end