Glade-3 crashes when trying to udock Pallette, Inspector or Properties

[bugssoren]

Consistent and repeatable behavior.
Version 3.14.0-0ubunutu1. Current updated in Ubuntu Quantel.
Does not generate a apport crash report.

To recreate:
Launch Glade-3. Uncheck these to undock panes:
View->Dock Pallette
View->Dock Inspector
View->Dock Properties

Quit Glade-3 and relaunch Glade-3. Panes are docked.
Try to undock panes again using any of these.
View->Dock Pallette
View->Dock Inspector
View->Dock Properties

Trying any will cause Glade-3 to crash.

A work around is to edit ~/.config/glade.conf and change these from true to false:
palette-detached=false
inspector-detached=false
properties-detached=false

This resets the settings to what appears to be the assumed initial default settings of Glade-3.
We can now undock the panes. However, that is good only for the current session.
Exiting and re-entering, the panes will again be docked.
Attempting to undock again will result in a crash.

The icons in the menu properly indicate that the glade.conf settings, but the behavior of the panes doesn't follow the setting.

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 16:02:45 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)