Subject: bug#36447: 27.0.50; New "Unknown keyword" errors

From: Eli Zaretskii <[email-masked]>
Date: Tue, 02 Jul 2019 17:17:28 +0300

> From: Stefan Kangas <[email-masked]>
> Date: Tue, 2 Jul 2019 03:59:11 +0200
> Cc: Noam Postavsky <[email-masked]>, [email-masked]
> 
> I saw this problem too, and can confirm that 'make bootstrap' fixed it
> for me as well.

Deleting all the *.elc files and saying "make" should have been
enough.