[horde] H6 imp appears to ignore mime_drivers.local.php

[Brent]

After running "composer update" today, I find my system is no longer  
using the html inline allowance I have in my mime_drivers.local.php  
file.

In the following directory:

<install-dir>/var/config/imp

I have a file named "mime_drivers.local.php" which contains:

<?php
$mime_drivers['html']['inline'] = true;

I run "composer horde-reconfigure" and this creates a symlink in  
<install-dir>/vendor/horde/imp/config for this file that is in the  
directory above; however, it doesn't appear to be using the override  
setting I have set.

I have to update the main mime_drivers.php file in  
<install-dir>/vendor/horde/imp/config directory in order to get inline  
html to display.

This is on imp-7.0.0(alpha 14) and horde(6.0.0-alpha10), using php 8.4.7.

brent