Update conflict error in table SalesParmUpdate while posting an invoice for sales order.

I have a requirement to avoid update conflict error in table SalesParmUpdate. I found that in the form SalesEditLines data source SalesParmUpdate there is Super() call that updates the records in SalesParmUpdate table. I believe as the table has OCC enabled as true hence there is recversion conflict happening while the user try to update the table SalesParmUpdate.
What I want to do is check for the recversion before the Super() call is made so just wanted some help as to whether can we find what exactly fields are having different value then the one saved in database other than the RecVersion. Any help in this direction will be great.
Thanks in advance.