diff --git a/odoo/tests/common.py b/odoo/tests/common.py
index 447171cfd55..6dbc576b7be 100644
--- a/odoo/tests/common.py
+++ b/odoo/tests/common.py
@@ -560,6 +560,7 @@ class SingleTransactionCase(BaseCase):
     def setUpClass(cls):
         super().setUpClass()
         cls.registry = odoo.registry(get_db_name())
+        cls.addClassCleanup(cls.registry.reset_changes)
         cls.addClassCleanup(cls.registry.clear_caches)
 
         cls.cr = cls.registry.cursor()