Re: Font-lock seemingly interacting with insertion

[Eli Zaretskii]

> From: Michael Heerdegen <michael_heerdegen@web.de>
> Cc: help-gnu-emacs@gnu.org
> Date: Wed, 21 Mar 2018 15:11:49 +0100
> 
> I thought the text property "font-lock-face" was exactly for such
> cases.  Isn't it appropriate in this case?

That's a possibility, but it will only work in modes/buffers that turn
on font-lock.  AFAIU, that was not OP's intent.