[FIX] base: res_partner: clarify string of commercial_partner_country_id

To avoid confusion in the filters and elsewhere

OPW 1910654

closes #28848

odoo/addons/base/i18n/base.pot

@@ -7037,6 +7037,12 @@ msgstr ""
 msgid "Commercial Entity"
 msgstr ""
 
+#. module: base
+#: model:ir.model.fields,field_description:base.field_res_partner_commercial_partner_country_id
+#: model:ir.model.fields,field_description:base.field_res_users_commercial_partner_country_id
+msgid "Commercial Entity's Country"
+msgstr ""
+
 #. module: base
 #: model:ir.module.module,summary:base.module_pos_data_drinks
 msgid "Common Drinks data for points of sale"

odoo/addons/base/res/res_partner.py

@@ -218,7 +218,8 @@ def _split_street_with_params(self, street_raw, street_format):
     # technical field used for managing commercial fields
     commercial_partner_id = fields.Many2one('res.partner', compute='_compute_commercial_partner',
                                              string='Commercial Entity', store=True, index=True)
-    commercial_partner_country_id = fields.Many2one('res.country', related='commercial_partner_id.country_id', store=True)
+    commercial_partner_country_id = fields.Many2one('res.country', related='commercial_partner_id.country_id', store=True,
+        string="Commercial Entity's Country")
     commercial_company_name = fields.Char('Company Name Entity', compute='_compute_commercial_company_name',
                                           store=True)
     company_name = fields.Char('Company Name')