[BUG] mailman-core container changed ip address, LMTP files weren't regenerated

[SVAneubauer]

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When doing some reconfiguration, I had to rerun docker compose up and for some reason it seems the mailman-core container received a different IP address.
First the container seems to have had 172.19.199.5 which was set up in /opt/mailman/core/var/data/postfix_lmtp.
However when checking the docker network it turned out that the container received 172.19.199.3.
As a quick workaround I quickly set the IP addresses of all three containers directly in the docker-compose.yml. But I am wondering whether there is some issue with the logic which determines whether the lmtp file needs to be regenerated:

docker-mailman/core/docker-entrypoint.sh

Line 263 in 6b091fc

su-exec mailman mailman aliases

Maybe the implementation in mailman needs some tweaking to work in a container?