[FIX] in case of no taxes

bzr revid: jco@openerp.com-20130304155550-g5m12ryt6id0b3m3

addons/hr_expense/hr_expense.py

@@ -306,9 +306,6 @@ class hr_expense_expense(osv.osv):
             # within: iml = self.pool.get('account.invoice.line').move_line_get
             iml = self.move_line_get(cr, uid, exp.id, context=context)
             
-            #Write taxes on the lines which should automatically add the necessary extra lines upon creation
-            
-            
             
             diff_currency_p = exp.currency_id.id <> company_currency
             # create one move line for the total
@@ -385,7 +382,7 @@ class hr_expense_expense(osv.osv):
                     a = fpos_obj.map_account(cr, uid, fpos, a)
                     taxes = a and self.pool.get('account.account').browse(cr, uid, a, context=context).tax_ids or False
                 tax_id = fpos_obj.map_tax(cr, uid, fpos, taxes)
-            else:
+            if not taxes:
                 taxes = []
             #Calculating tax on the line and creating move?
             for tax in tax_obj.compute_all(cr, uid, taxes,