software-properties-gtk Does Not Download PPA Signing Keys

[Ivan]

software-properties-gtk in Ubuntu 11.10 does not automatically download a Signing Key when adding repositories from Launchpad PPAs, resulting in such errors from apt-get update or Synaptic:
GPG error: http://ppa.launchpad.net oneiric Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 61260473F9D8BC54

Never used to have any problems with software-properties-gtk automatically adding PPA Keys in earlier versions of Ubuntu

Work around has been to use add-apt-repository from the terminal

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: software-properties-gtk 0.81.10
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
Date: Tue Oct 25 02:37:30 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
PackageArchitecture: all
SourcePackage: software-properties
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[hi675445 (hi675445)]

it me