RMA will not automatically offset its original invoice

Good day!

Company would like have all its newly created RMAs not to automatically offset their original invoices even though the reference was not deleted during RMA creation.

It was suggested before that in order for the RMA not to automatically offset its invoice, we will have to delete the reference. Unfortunately, doing this will have a variance between the RMA and the invoice as we have a negative tax setup for the invoice.

Is their a standard setup or personalization where in the reference will not be deleted but still the RMA created will not offset the original invoice?