[ADD] ERPLibre odoo 15 migration om_fiscal_year

Author: mathben

openupgrade_scripts/scripts/om_fiscal_year/6.3.0/pre-migration.py

@@ -0,0 +1,25 @@
+# Copyright 2025 TechnoLibre  <https://technolibre.ca>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+import logging
+
+from openupgradelib import openupgrade
+
+from odoo.tools.translate import _
+
+_logger = logging.getLogger(__name__)
+
+
+
+def change_owner_group_fiscal_year(env):
+    """When installing om_account_accountant, got a conflict duplicated group group_fiscal_year
+    """
+    res_groups = env['res.groups'].sudo()
+    # Remove any stale/duplicate mapping of the old XMLID
+    res_groups.search([
+        ('name', '=', 'Allow to define fiscal years of more or less than a year'),
+    ]).unlink()
+
+
+@openupgrade.migrate()
+def migrate(env, version):
+    change_owner_group_fiscal_year(env)