Setting liststore column type selects 2 widgets

To recreate:

Create a window.
Add a treeview. Creating a new liststore model.
Edit the liststore, liststore1.
Add a column by changing it's type to say gchararray.
Click on the Column name or just press enter to accept the Column type.

At this point both the window1 and liststore1 widget are selected in the widget tree. Because 2 widgets are selected, the properties of the liststore1 can no longer be displayed and the properties editor is empty.

This happens for any column either initially or later added to the liststore. Also happens for treestore models. Not 100% consistent. Works properly maybe 1 or 2% of the time. Like under the right combination of conditions it works properly, otherwise it exhibits this annoying behavior.

Of course the workaround is to simply select the liststore1 again and finish off the Column name as a second edit of the liststore.

This behavior was also present in the previous version for Ubuntu Precise.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: glade 3.14.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic x86_64
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
Date: Sun Nov 25 18:10:35 2012
InstallationDate: Installed on 2012-04-28 (211 days ago)
InstallationMedia: Xubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MarkForUpload: True
SourcePackage: glade
UpgradeStatus: Upgraded to quantal on 2012-11-23 (2 days ago)