[Bug 263289] New: Muon always complains (falsely) about not getting dpkg lock when forcing package version

https://bugs.kde.org/show_bug.cgi?id=263289

           Summary: Muon always complains (falsely) about not getting dpkg
                    lock when forcing package version
           Product: muon
           Version: 1.0.2
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: muon
        AssignedTo: echidnaman@...
        ReportedBy: bugsbane@...

Created an attachment (id=56072)
 --> (http://bugs.kde.org/attachment.cgi?id=56072)
Image of the error popup and package versions

Version:           1.0.2 (using KDE 4.5.3) 
OS:                Linux

Muon always gives the following error when forcing a version of
libavfilter-extra-0:

"Another application seems to be using the package system at this time. You
must close all other package managers before you will be able to install or
remove any packages."

Reproducible: Always

Steps to Reproduce:
1. Search for libavfilter-extra-0
2. Under versions choose the oldest - I have two, in my case this is
4:0.5.1-1ubuntu1 (lucid)
3. Click "Force"
4. Click "Apply" and enter password

Actual Results:  
The error listed above appears in a popup.

Expected Results:  
The version selected installs.

OS: Linux (x86_64) release 2.6.32-27-preempt
Compiler: cc

There is nothing in /var/lock/
I am still able to install other packages just fine. This error only seems to
appear when forcing versions. I haven't tried forcing other packages.
I'm using KXstudio 10.04.3 which is based off Ubuntu and uses a lot of Kubuntu
packages, but has a bunch of KDE stuff repackaged independently of Kubuntu. The
version of Muon is 1.0.2-0ubuntu1~lucid1~ppa1

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