stock_orderpoint_origin add sale order count for mrp.production

[pumppi]

Is your feature request related to a problem?
No

Describe the solution you'd like
We been testing stock_orderpoint_origin for adding forecast sale orders to production sale orders smart button.
We did a small, maybe little bit dirty fix to stock_orderpoint_origin for calculating sales orders linked to mrp.production.
Here is the code what we used. Wondering does someone have better solution?

Inherited mrp.production and added these:

`

def _try_to_get_saleorders(self, origin):
    result = []
    try:
        groups = re.sub('\(.*\)', '', origin)
        groups = groups.replace(" ", "")
        groups = groups.split(',')

        sale_orders = self.env['sale.order'].search([("name", "in", groups)])
        result = sale_orders
    except Exception as e:
        _logger.info('Parsing origin fails %s',e)
    return result

def _compute_sale_order_count(self):
    super()._compute_sale_order_count()
    for production in self:
        if production.sale_order_count == 0:
            production.sale_order_count = len(self._try_to_get_saleorders(production.origin))
      

def action_view_sale_orders(self):
    action = super().action_view_sale_orders()
    if len(self.procurement_group_id.mrp_production_ids.move_dest_ids.group_id.sale_id.ids) == 0:
        sale_order_ids = self._try_to_get_saleorders(self.origin).ids
        if len(sale_order_ids) == 1:
            action.update({
                'view_mode': 'form',
                'res_id': sale_order_ids[0],
            })
        else:
            action.update({
                'name': _("Sources Sale Orders of %s", self.name),
                'domain': [('id', 'in', sale_order_ids)],
                'view_mode': 'tree,form',
            })
    
    return action`

[github-actions]

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