From e8253d3a642d396d9646d082f97eb233a2b2396e Mon Sep 17 00:00:00 2001 From: Kuldeep Aggarwal Date: Sat, 28 Dec 2013 17:05:51 +0530 Subject: [PATCH] setting `changed_attributes` instance variable if it is already initialized. --- activerecord/lib/active_record/persistence.rb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index 309bb980e3..b94ef18fd5 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -181,7 +181,7 @@ module ActiveRecord became = klass.new became.instance_variable_set("@attributes", @attributes) became.instance_variable_set("@attributes_cache", @attributes_cache) - became.instance_variable_set("@changed_attributes", @changed_attributes) + became.instance_variable_set("@changed_attributes", @changed_attributes) if defined?(@changed_attributes) became.instance_variable_set("@new_record", new_record?) became.instance_variable_set("@destroyed", destroyed?) became.instance_variable_set("@errors", errors)