In taxes by invoice report, filter the invoices and credit note from

invoice related, not from invoice tax. To ensure the information showed
is related the global invoice amount not the specfic tax.

taxes_by_invoice/taxes_by_invoice.py

@@ -277,9 +277,9 @@ class TaxesByInvoiceReport(HTMLReport):
             domain += [('invoice.party', 'in', parties)],
 
         if data['tax_type'] == 'invoiced':
-            domain += [('base', '>=', 0)]
+            domain += [('invoice.untaxed_amount', '>=', 0)]
         elif data['tax_type'] == 'refunded':
-            domain += [('base', '<', 0)]
+            domain += [('invoice.untaxed_amount', '<', 0)]
 
         if data['taxes']:
             domain += [('tax', 'in', data.get('taxes', []))]