Steps to reproduce:
* Create PO
* Confirm Receipt Date
* Cancel PO
* Draft and Confirm again
Current behavior:
* Button for Confirm Receipt Date is not visible
Expected behavior:
* Button for Confirm Receipt Date should be visible
This is happening as we are not resetting the value of `mail_reminder_confirmed` on cancelling PO.
With this commit, we reset value of `mail_reminder_confirmed` so use can Confirm Receipt Date again.
closesodoo/odoo#79122
X-original-commit: 9e48afe5bf4f52b7cc2705fe434b4647df752a59
Signed-off-by: Arnold Moyaux <arm@odoo.com>