init app-odoo 15 from 13

app_odoo_customize/models/base_language_install.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+# License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl.html).
+
+from odoo import api, fields, models, _
+
+
+class BaseLanguageInstall(models.TransientModel):
+    _inherit = "base.language.install"
+
+    def lang_install(self):
+        self.ensure_one()
+        if self.overwrite:
+            self.env.cr.execute("""
+                delete from ir_translation
+                where lang=%s
+                """, (self.lang,))
+            self.env.cr.commit()
+        return super(BaseLanguageInstall, self).lang_install()