Traceback while opening invoice line to select product

Hello,

First of all install the account_anglo_sexon module.

Now while i am trying to creating an invoice and try to add invoice line, i am getting this Traceback.

Traceback (most recent call last):
  File "/home/tiny/workspace/rdtools/server/trunk/openerp/osv/osv.py", line 118, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/home/tiny/workspace/rdtools/server/trunk/openerp/osv/osv.py", line 172, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/home/tiny/workspace/rdtools/server/trunk/openerp/osv/osv.py", line 163, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
TypeError: product_id_change() takes at most 15 arguments (16 given)
.
.
.

This is becouse the product_id_change in account/invoice.py modified and it takes one extra argument company_id.

Thanks,
Purnendu Singh