langtool doesn't seem to handle emails very well.

[johnhamelink]

With the following message:

From: John Hamelink <me@johnhame.link>
To: Janis Reid <janis.reid@redacted.com>
Subject: Amazin'
Date: Thu, 03 Feb 2022 23:10:52 +0000
--text follows this line--
#+OPTIONS: html-postamble:nil H:5 num:nil ^:{} toc:nil author:nil email:nil \n:t d:nil
#+STARTUP: hidestars indent inlineimages
:PROPERTIES:
:reply-to: nil
:attachment: nil
:alternatives: (text html)
:END:

Hi,

This is an attempt at aasaaaaaa.

I want to see if language tool will behave properly in this context

lets see

JH

langtool-check decorates the text like so on my machine:

Hovering over some of the highlights reveals they seem mixed up. Some examples:

How can I help debug this further?