NM for KDE allows to configure VPN connection even if network-manager-openvpn is not installed

[Stilor]

NetworkManager has "VPN" tab enabled. I entered all the needed information there, but when I clicked on the created VPN connection, nothing happened. It turned out that by default, network-manager-openvpn was not installed. Once installed, everything worked.

Expected behavior: NM should suggest installing required package (network-manager-openvpn) if a VPN is configured, and/or not allow configuring a VPN unless this package is installed.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: network-manager-kde (not installed)
ProcVersionSignature: Ubuntu 3.8.0-14.24-generic 3.8.4
Uname: Linux 3.8.0-14-generic x86_64
ApportVersion: 2.9.2-0ubuntu4
Architecture: amd64
Date: Tue Mar 26 23:36:26 2013
InstallationDate: Installed on 2013-03-16 (10 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130314)
MarkForUpload: True
SourcePackage: networkmanagement
UpgradeStatus: No upgrade log present (probably fresh install)