Samba Printer URL blocking special characters in KDE system settings

I am printing to a windows printer with spaces in the URL. When I go into the System Settings - Printer Configuration - New Printer - Windows Printer via SAMBA it blocks the % (percent character) which is required to put spaces as %20. Additionally some printers have other special characters in the name which require escaping.

The workaround is to go to New Printer - Other and enter the device URI as smb://PrinterServer/Printer%20Name%20With%20Spaces encoding the username/password for the printer as required (on apply just the URI without the username/password shows up, but /etc/cups/printers.conf has the correct URL with the username/password and printing works successfully.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: systemsettings 4:4.7.2-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
Uname: Linux 3.0.0-13-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Thu Dec 29 10:32:29 2011
ExecutablePath: /usr/bin/systemsettings
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=en_US.UTF-8
SourcePackage: kde-workspace
UpgradeStatus: No upgrade log present (probably fresh install)