We should rollback manually first to avoid concurrent access errors/deadlocks when trying to refresh microsoft calendar token. opw-2630601 closes odoo/odoo#77955 X-original-commit: 5cd27e3440efae06bee6a96aee39f4d2c509ede7 Signed-off-by: Arnaud Joset <arj-odoo@users.noreply.github.com> Signed-off-by: Alex Tuyls <alt-odoo@users.noreply.github.com>