sale order line invoice status is wrong

[Ronny Dierckx]

1 Create a draft invoice for a sale order
2 Cancel the draf invoice but do not delete it
3 Recreate a draft invoude for the sale order
4 The invoiced status of the sale order line will be 'false', and the lines will stay to-be invoiced in the "Order Lines to Invoice" screen

Code in addons/sale/saly.py:

    def _fnct_line_invoiced(self, cr, uid, ids, field_name, args, context=None):
        res = dict.fromkeys(ids, False)
        for this in self.browse(cr, uid, ids, context=context):
            res[this.id] = this.invoice_lines and \
                all(iline.invoice_id.state != 'cancel' for iline in this.invoice_lines)
        return res

I think the all() check is wrong, it should check if there is at least one invoice record with status not cancelled (replace all() with any())