Description of problem:
It is no longer possible to change the zone of a connection using the firewall-applet.

Version-Release number of selected component (if applicable):
firewall-applet    0.3.10-1
firewalld          0.3.10-1

How reproducible:
Always

Steps to Reproduce:
1. Click fireall-applet, the list of active connections is shown
2. Click on one of them, a dialog will be shown
3. Change the zone of that particular connection

Actual results:
The zone is not changed. When running in console I can see this error:
Traceback (most recent call last):
  File "/usr/bin/firewall-applet", line 763, in change_zone_connection_editor
    editor.run()
  File "/usr/bin/firewall-applet", line 174, in run
    settings = connection_obj.GetSettings()
  File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 70, in __call__
    return self._proxy_method(*args, **keywords)
  File "/usr/lib/python2.7/dist-packages/slip/dbus/proxies.py", line 51, in __call__
    return dbus.proxies._ProxyMethod.__call__(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 145, in __call__
    **keywords)
  File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.AccessDenied: Rejected send message, 7 matched rules; type="method_call", sender=":1.106" (uid=1000 pid=15505 comm="/usr/bin/python -Es /usr/bin/firewall-applet ") interface="(unset)" member="GetSettings" error name="(unset)" requested_reply="0" destination=":1.16" (uid=0 pid=1012 comm="/usr/sbin/NetworkManager --no-daemon ")

Expected results:
The zone is changed

Additional info:
I heard that Fedora is removing at_console from policykit. It was there in firewalld 0.3.9 but it isn't in the policy file anymore. Maybe that's causing the error as NetworkManager is running as root and the applet does not have enough privileges to change the zone. Seems like some authentication is needed?