credit memo not copying interface_header_attribute1 value of invoice on which credit memo is applie

I have create a manual credit memo from invoice transaction window and applied this credit memo on that transaction.

I checked that ct_reference is populated, and same number is expected to occur in interface_header_attribute1 but this is not.

Navigation that i used : AR superuser>>Transactions >> Tools>> credit

It is very important for me to solve this, quick response will be appreciated.