Version-Release number of selected component:
firewall-applet-0.2.12-4.fc18

Additional info:
cmdline:        /usr/bin/python /usr/bin/firewall-applet
executable:     /usr/bin/firewall-applet
kernel:         3.8.4-202.fc18.x86_64
uid:            1000
ureports_counter: 1

Truncated backtrace:
connection.py:651:call_blocking:DBusException: org.freedesktop.DBus.Python.dbus.exceptions.DBusException: ZONE_ALREADY_SET: block

Traceback (most recent call last):
  File "/usr/bin/firewall-applet", line 373, in shieldsup_check_toggled
    self.fw.setDefaultZone(self.settings.get_string("shields-up"))
  File "<string>", line 2, in setDefaultZone
  File "/usr/lib/python2.7/site-packages/slip/dbus/polkit.py", line 103, in _enable_proxy
    return func(*p, **k)
  File "/usr/lib/python2.7/site-packages/firewall/client.py", line 686, in setDefaultZone
    self.fw.setDefaultZone(zone)
  File "/usr/lib/python2.7/site-packages/slip/dbus/proxies.py", line 50, in __call__
    return dbus.proxies._ProxyMethod.__call__(self, *args, **kwargs)
  File "/usr/lib/python2.7/site-packages/dbus/proxies.py", line 145, in __call__
    **keywords)
  File "/usr/lib/python2.7/site-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
DBusException: org.freedesktop.DBus.Python.dbus.exceptions.DBusException: ZONE_ALREADY_SET: block

Local variables in innermost frame:
byte_arrays: False
self: <dbus._dbus.SystemBus (system) at 0x17b39b0>
args: ('block',)
object_path: '/org/fedoraproject/FirewallD1'
signature: u's'
bus_name: dbus.UTF8String(':1.3')
get_args_opts: {'byte_arrays': False, 'utf8_strings': False}
timeout: 2147483.647
kwargs: {}
dbus_interface: 'org.fedoraproject.FirewallD1'
message: <dbus.lowlevel.MethodCallMessage path: /org/fedoraproject/FirewallD1, iface: org.fedoraproject.FirewallD1, member: setDefaultZone dest: :1.3>
method: 'setDefaultZone'