odoo16/addons/mrp_account/models/stock_rule.py

# -*- coding: utf-8 -*-
# Part of Odoo. See LICENSE file for full copyright and licensing details.

from odoo import models


class StockRule(models.Model):
    _inherit = 'stock.rule'

    def _prepare_mo_vals(self, product_id, product_qty, product_uom, location_id, name, origin, company_id, values, bom):
        res = super()._prepare_mo_vals(product_id, product_qty, product_uom, location_id, name, origin, company_id, values, bom)
        if not bom.analytic_account_id and values.get('analytic_account_id'):
            res['analytic_account_id'] = values.get('analytic_account_id').id
        return res