Synaptic: Cannot purge package configuration files in Ubuntu 11.04

[FERNmann]

Binary package hint: synaptic

What I did:

I marked a package which was uninstalled but whose configuration files weren't purged for complete removal.

What I expected to happen:

The apply button should get clickable.

What happened instead:

The apply button stays greyed out so I cannot purge the configuration files for the selected package.

Workaround:

Do something else additionally, reinstalling another package for example so the apply button turns into a clickable state.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: synaptic 0.75.1ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Sun Apr 17 21:08:17 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413)
ProcEnviron:
 LANGUAGE=de_DE:en
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: synaptic
UpgradeStatus: No upgrade log present (probably fresh install)

[Richard Corner (rcorner)]

This also affects me in the release version of 11.04.