abrt 1.0.0 detected a crash.

backtrace
-----
Summary: TB2ed10ca9 service.py:252:_method_reply_return:TypeError: More items found in D-Bus signature than in Python arguments

Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/dbus/connection.py", line 586, in msg_reply_handler
    reply_handler(*message.get_args_list(**get_args_opts))
  File "/usr/lib/python2.6/site-packages/slip/dbus/polkit.py", line 306, in reply_cb
    reply_handler(is_authorized)
  File "/usr/lib/python2.6/site-packages/slip/dbus/service.py", line 134, in reply_handler
    reply_cb()
  File "/usr/lib/python2.6/site-packages/dbus/service.py", line 663, in <lambda>
    keywords[return_callback] = lambda *retval: _method_reply_return(connection, message, method_name, signature, *retval)
  File "/usr/lib/python2.6/site-packages/dbus/service.py", line 252, in _method_reply_return
    reply.append(signature=signature, *retval)
TypeError: More items found in D-Bus signature than in Python arguments

Local variables in innermost frame:
e: More items found in D-Bus signature than in Python arguments
method_name: userExists
connection: <dbus._dbus.SystemBus (system) at 0x1c29410>
signature: b
reply: <dbus.lowlevel.MethodReturnMessage object at 0x7f92defae480>
message: <dbus.lowlevel.MethodCallMessage object at 0x7f92defae468>
retval: ()

cmdline: /usr/bin/python /usr/share/system-config-samba/system-config-samba-mechanism.py 
component: system-config-samba
executable: /usr/share/system-config-samba/system-config-samba-mechanism.py
kernel: 2.6.31.6-145.fc12.x86_64
package: system-config-samba-1.2.83-1.fc12
uuid: 2ed10ca9