[6.1][mass_editing] TypeError when try to create a product.product edition registry

[Mariano Ruiz]

When try to create a new registry in Configuration > Mass Editing > Mass Editing, and in "Model" field select Product (product.product), this is launched:

2013-06-05 20:24:08,788 17571 ERROR ? openerp.osv.osv: Uncaught exception
Traceback (most recent call last):
  File "/opt/oerp/openerp-6.1/server/openerp/osv/osv.py", line 129, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/opt/oerp/openerp-6.1/server/openerp/osv/osv.py", line 195, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/opt/oerp/openerp-6.1/server/openerp/osv/osv.py", line 183, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/opt/oerp/extra-addons-6.1/mass_editing/mass_editing.py", line 53, in onchange_model
    model_ids += found_model_ids[0]
TypeError: 'int' object is not iterable
2013-06-05 20:24:08,790 17571 ERROR ? openerp.netsvc: 'int' object is not iterable

We fix this bug, please check our branch patch.