[FIX] stock_account: remove traceback introduced by f2108e9e

invoice_vals['name'] may not be defined yet.

addons/stock_account/stock.py

@@ -240,7 +240,7 @@ class stock_picking(osv.osv):
             @return: object of the partner to invoice
         """
         return picking.partner_id and picking.partner_id.id
-        
+
     def action_invoice_create(self, cr, uid, ids, journal_id, group=False, type='out_invoice', context=None):
         """ Creates invoice based on the invoice state selected for picking.
         @param journal_id: Id of journal
@@ -315,7 +315,7 @@ class stock_picking(osv.osv):
                 if not invoice.origin or invoice_vals['origin'] not in invoice.origin.split(', '):
                     invoice_origin = filter(None, [invoice.origin, invoice_vals['origin']])
                     merge_vals['origin'] = ', '.join(invoice_origin)
-                if not invoice.name or invoice_vals['name'] not in invoice.name.split(', '):
+                if invoice_vals.get('name', False) and (not invoice.name or invoice_vals['name'] not in invoice.name.split(', ')):
                     invoice_name = filter(None, [invoice.name, invoice_vals['name']])
                     merge_vals['name'] = ', '.join(invoice_name)
                 if merge_vals: