Update objectify_query_results to support ActiveSupport 5.2 as changed_attributes.clear throw error: can't modify frozen ActiveSupport::HashWithIndifferentAccess
Update objectify_query_results to support ActiveSupport 5.2 as changed_attributes.clear throw error: can't modify frozen ActiveSupport::HashWithIndifferentAccess

bigcommerce-labs/active_zuora,sportngin/active_zuora,Invoca/active_zuora