Subject: bug#37782: Emacs 27 client adding [I] to the beginning of the buffer

From: Eli Zaretskii <[email-masked]>
Date: Thu, 17 Oct 2019 16:16:45 +0300

> From: Carlos Pita <[email-masked]>
> Date: Thu, 17 Oct 2019 09:26:26 -0300
> Cc: [email-masked]
> 
> Moreover, in emacs 26 those two focus-in/out sequences are not defined at all.

Which probably explains why you didn't see the problem in Emacs 26,
right?