poudriere-devel: can't configure options anymore (poudriere bug?)

Hello,

running a CURRENT host (15.0-CURRENT FreeBSD 15.0-CURRENT #18 main-n266607-46971d38de3: Fri
Nov 24 20:24:17 CET 2023 amd64) and ontop of this host CURRENT jails and within such a jail I
provide a poudriere (ZFS based) building host.

Out of the blue I face the problem that I can not configure ANY(!) port anymore using 

poudriere options -p head -z default -j jailname category/port

whatever I use as category/port or even if using "-f /usr/local/etc/poudriere.d/pkglistfile",
poudriere stops with:

[...]
[00:00:00] Working on options directory:
/usr/local/etc/poudriere.d/head-amd64-head-default-options [00:00:00] Using ports from:
/pool/poudriere/ports/head [00:00:00] Appending to make.conf:
/usr/local/etc/poudriere.d/make.conf [00:00:00] Creating the reference jail... done
[00:00:01] Mounting system devices for head-amd64-head-default
[00:00:01] Mounting ports from: /pool/poudriere/ports/head
[00:00:01] Mounting packages from: 
[00:00:01] Mounting distfiles from: /pool/poudriere/ports/distfiles/
[00:00:01] Copying /var/db/ports from:
/usr/local/etc/poudriere.d/head-amd64-head-default-options [00:00:02] Appending to make.conf:
/usr/local/etc/poudriere.d/make.conf /etc/resolv.conf ->
/pool/poudriere/data/.m/head-amd64-head-default/ref/etc/resolv.conf [00:00:02] Starting jail
head-amd64-head-default [00:00:03] Ports supports: FLAVORS SELECTED_OPTIONS
[00:00:03] Error: No such port: accessibility/at-spi2-core
[00:00:03] Cleaning up
[00:00:03] Unmounting file systems


In the case shown above the port "accessibility/at-spi2-core" would be the first line in the
pkglist file, but I revealed this issue when trying to add and configure manually a solitair
port (databases/pgmodeler).

The only difference I can observe comparing a "bulk" run in comparison with the output above
is the empty

[00:00:01] Mounting packages from:

line, but I have no idea whether this is provided or not in previous runs/


The problem is widespread on a couple of systems utilising the latest 

poudriere-devel

port (due to its overlay facility) even on a FreeBSD-13.2-RELEASE-p5 host with base system and
packages obtained by the official base/port sites.

I can't find any flaw or outdated configuration on my system which would explain the
widespread occurance of the problem, so I guess there is a general change somewhere elese.

I need some advice or help, please.

Thanks in advance, 
-- 
O. Hartmann