[IMP] product_harmonized_system_delivery: Make product.template#hs_code related

product_harmonized_system_delivery/__init__.py

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+from . import models

product_harmonized_system_delivery/models/__init__.py

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+from . import product

product_harmonized_system_delivery/models/product.py

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+# Copyright 2017 Camptocamp SA
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import fields, models
+
+
+class ProductTemplate(models.Model):
+    _inherit = "product.template"
+
+    # this field cannot be stored because hs_code_id is company dependent
+    hs_code = fields.Char(related="hs_code_id.hs_code", readonly=True, store=False)