systemsettings crashed with AttributeError in fillPrinterOptions(): 'bool' object has no attribute 'markDefaults'

[Alex Crazy]

I'm added new printer using systemsettings. At last systemsettings crashed with the same escription as this. Now, if I'm run systemsettings, and call printer management applet - this crash appears.
It's permanently behavior
Also, printer was installed, and works fine.
I can supply config files, if needed

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: systemsettings 4:4.7.0-0ubuntu11
ProcVersionSignature: Ubuntu 3.0.0-9.15-generic 3.0.3
Uname: Linux 3.0.0-9-generic x86_64
Architecture: amd64
Date: Fri Sep 2 20:55:22 2011
ExecutablePath: /usr/bin/systemsettings
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427)
ProcCmdline: /usr/bin/systemsettings -caption System\ Settings --icon preferences-system
ProcEnviron:
 LANG=uk_UA.UTF-8
 SHELL=/bin/bash
SourcePackage: kde-workspace
Title: systemsettings crashed with AttributeError in fillPrinterOptions(): 'bool' object has no attribute 'markDefaults'
UpgradeStatus: Upgraded to oneiric on 2011-08-09 (24 days ago)
UserGroups: adm admin audio cdrom dialout fax floppy lpadmin plugdev sambashare syslog

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #763369, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.