- Create an event - Add a mail reminder for it - Run the mail scheduler manually - Duplicate the event The mail reminder is sent on the duplicate too. This commit remove the field `mail_sent` from duplicating. OPW-2117343 closes odoo/odoo#39777 X-original-commit: 7fede2c0360f72410ac36f5d706ac5c7c18b7c7d Signed-off-by: Jason Van Malder <jasonvanmalder@users.noreply.github.com>