nftables & firewalld breaks DNS resolution when attached to a custom network

Create a new Dockerfile:

Failing dockerfile:

FROM ubuntu:rolling
ENTRYPOINT [ "/sbin/init", "--log-level=err" ]
RUN apt-get update
RUN apt-get install -y systemd openssh-server openssh-server nano vim
RUN echo "root:1" | chpasswd
RUN echo "PermitRootLogin yes" > /etc/ssh/sshd_config
RUN apt-get install -y firewalld dnsutils

Working dockerfile:

FROM ubuntu:focal
ENTRYPOINT [ "/sbin/init", "--log-level=err" ]
RUN apt-get update
RUN apt-get install -y systemd openssh-server openssh-server nano vim
RUN echo "root:1" | chpasswd
RUN echo "PermitRootLogin yes" > /etc/ssh/sshd_config
RUN apt-get install -y firewalld dnsutils

docker build -t firewalld_test .

Create the network:

docker network create -d bridge --subnet 10.6.0.0/16 firewalld_network

Run the container:

docker run --runtime sysbox-runc --ip 10.6.0.3 --rm --network firewalld_network firewalld

SSH into container:

ssh root@10.6.0.3

Run dig:

dig +time=3 +tries=1 @10.6.0.1 google.com # fails
dig +time=3 +tries=1 @1.1.1.1 google.com # works

cat /etc/resolv.conf
nameserver 10.6.0.1 # This is the expected value