Can't show the actual docker Containers as normal user

Since the last updates of fedora 20, I can't show the actual active docker container.

I always get a Permission denied on the socket:

$ docker ps
2014/07/21 09:37:32 Get http:///var/run/docker.sock/v1.12/containers/json: dial unix /var/run/docker.sock: permission denied

The former problem was that my account was not in the docker-group, but
now it's a different problem, because I'm in the group.

Found the workaround-hint in this Bug.( Different systemd versions for
actual configuration and running systemd )

Changing the group ownership of /var/run/docker.sock to docker allowed
me to view the containers again:

chown root:docker /var/run/docker.sock