KMail failing to encrypt message using 'Send Later' option

[TWPonKubuntu]

I note several people here use KMail so this caught my eye:

If you tried to send an encrypted message and selected the "Send Later" option, your message may be flagged as encrypted, by it is sent in clear text... Oops...

https://ctrl.blog/entry/kmail-cve-2017-9604-openpgp

I don't know if it has been patched yet. The linked post was very recent (today).

[GreyGeek]

I tested "Send Later" by sending myself an encrypted message. The encryption was intact when I got it back.

I am running version: 4:17.04.2-0neon+16.04+xenial+build21
My upgrade history show KMail was updated on 6/8/2017:
kmail (4.04.1-0neon+16.04+build20, 4.04.2-0neon+16.04+xenial+build21) Upgraded at Thu Jun 8 13:48:13 2017

It looks like Neon patched that bug 8 days ago.

[TWPonKubuntu]

Good, better a warning is late than never arrives...