Reversing accruals on invoices with tax applied and re-validating

Hi all,
I have a simple, single item invoice that has a single accrual distro line that I would like to reverse.  However, associated with this item are several nonrecoverable tax lines which I assume are causing it to fail based on this document:

APXINWKB: How To Reverse the Invoice Distribution Line When APP-SQLAP-10103 Error Message Arises (Doc ID 398371.1)
 
The workaround provided is to discard the entire line.  When I try doing that it does seem to add a distro entry reversing the accrual. 
It also marks the invoice status as "Needs Revalidation" 
However when trying to revalidate, it detects a line variance and puts a hold on the invoice and leaves the status as "Needs Revalidation" which it won't let me manually release.