[FIX] account_voucher: `get_product_accounts` expects a browse record

The method `get_products_accounts` obviously requires
a fiscal position browse record for its `fiscal_pos` parameter:

```
    @api.multi
    def get_product_accounts(self, fiscal_pos=None):
        accounts = self._get_product_accounts()
        if not fiscal_pos:
            fiscal_pos = self.env['account.fiscal.position']
        return fiscal_pos.map_accounts(accounts)
```

But the method `product_id_change` called it with a fiscal
position id, through its own class method `_get_account`

This probably happened during the merge at revision
75d7bbb46e100b7ffda091a11183d4ed14d3bbed

which has not been correctly rebased on the acounting 9.0
revision
c04065abd8f62c9a211c8fa824f5eecf68e61b73

opw-678735

0 files changed, 0 insertions, 0 deletions