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-rw-r--r--activerecord/lib/active_record/base.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb
index cd16b8d3ca..30e2d1a82c 100644
--- a/activerecord/lib/active_record/base.rb
+++ b/activerecord/lib/active_record/base.rb
@@ -2018,7 +2018,7 @@ MSG
def extract_callstack_for_multiparameter_attributes(pairs)
attributes = { }
- for pair in pairs
+ pairs.each do |pair|
multiparameter_name, value = pair
attribute_name = multiparameter_name.split("(").first
attributes[attribute_name] = {} unless attributes.include?(attribute_name)