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-rw-r--r--activerecord/lib/active_record/store.rb3
1 files changed, 3 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/store.rb b/activerecord/lib/active_record/store.rb
index a610f479f2..5fc80cdb6d 100644
--- a/activerecord/lib/active_record/store.rb
+++ b/activerecord/lib/active_record/store.rb
@@ -86,6 +86,9 @@ module ActiveRecord
end
end
+ # assign new store attribute and create new hash to ensure that each class in the hierarchy
+ # has its own hash of stored attributes.
+ self.stored_attributes = {} if self.stored_attributes.blank?
self.stored_attributes[store_attribute] ||= []
self.stored_attributes[store_attribute] |= keys
end