failed to start daemon: Error initializing network controller: Error creating default “bridge” network

Question

Found out that

$ firewall-cmd --get-active-zones
FedoraWorkstation
  interfaces: ens4u1u2 wlp59s0
docker
  interfaces: br-48d7d996793a
libvirt
  interfaces: virbr0
trusted
  interfaces: docker0

the interface docker0 seems to be in the trusted zone.
But there’s another zone called docker.

So I decided to give it a shot and add it to the docker zone instead.

$ sudo firewall-cmd --permanent --zone=docker --change-interface=docker0
$ sudo firewall-cmd --reload

Looks like this afterwards:

$ firewall-cmd --get-active-zones
FedoraWorkstation
  interfaces: ens4u1u2 wlp59s0
docker
  interfaces: br-48d7d996793a docker0
libvirt
  interfaces: virbr0

Seems to work.
Maybe someone can shed more light on this.

Edit: added firewall-cmd --reload as pointed out in the comments

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