r22141 - gnucash/trunk/src/report/business-reports - Fix the annoying case where an invoice item has mistakenly(?) had a tax table applied,

[Mike Evans]

Author: mikee
Date: 2012-04-09 11:23:40 -0400 (Mon, 09 Apr 2012)
New Revision: 22141
Trac: http://svn.gnucash.org/trac/changeset/22141

Modified:
   gnucash/trunk/src/report/business-reports/taxinvoice.eguile.scm
Log:
Fix the annoying case where an invoice item has mistakenly(?) had a tax table applied,
unchecking the taxable flag for that item didn't remove the tax related columns
from the invoice where there are no other taxable items.