Alt-F10 to maximize a window doesn't work anymore

Steps to reproduce:

1. Open a terminal.
2. Hit Alt-F10. Nothing happens, oops. :)

I'm running with these packages, upgraded about an hour ago:

$ dpkg -l|grep unity
ii gir1.2-unity-5.0 5.6.0-0ubuntu1 GObject introspection data for the Unity library
ii libmeanwhile1 1.0.2-4build1 open implementation of the Lotus Sametime Community Client protocol
ii libunity-2d-private0 5.7.0-0ubuntu1 Unity 2D shared library
rc libunity-core-4.0-4 4.28.0-0ubuntu2 Core library for the Unity interface.
ii libunity-core-5.0-5 5.6.0-0ubuntu4 Core library for the Unity interface.
ii libunity-misc4 4.0.4-0ubuntu2 Miscellaneous functions for Unity - shared library
ii libunity6 4.0.6-0ubuntu3 binding to get places into the launcher - shared library
ii libunity9 5.6.0-0ubuntu1 binding to get places into the launcher - shared library
ii unity 5.6.0-0ubuntu4 Interface designed for efficiency of space and interaction.
ii unity-2d 5.7.0-0ubuntu1 Unity interface for non-accelerated graphics cards
ii unity-2d-common 5.7.0-0ubuntu1 Common files for Unity 2D Shell
ii unity-2d-launcher 5.7.0-0ubuntu1 Transitional package for unity-2d-launcher
ii unity-2d-panel 5.7.0-0ubuntu1 Unity 2D Panel
ii unity-2d-places 5.7.0-0ubuntu1 Transitional package for unity-2d-places
ii unity-2d-shell 5.7.0-0ubuntu1 Dash and Launcher for the Unity 2D environment
ii unity-2d-spread 5.7.0-0ubuntu1 Unity 2D Spread
ii unity-asset-pool 0.8.23-0ubuntu1 Unity Assets Pool
ii unity-common 5.6.0-0ubuntu4 Common files for the Unity interface.
ii unity-greeter 0.2.6-0ubuntu1 Unity Greeter
ii unity-lens-applications 5.6.0-0ubuntu1 Application lens for unity
ii unity-lens-files 5.6.0-0ubuntu1 File lens for unity
ii unity-lens-music 5.4.0-0ubuntu1 Music lens for unity
ii unity-lens-video 0.3.4-0ubuntu1 Unity Video lens
ii unity-scope-musicstores 5.4.0-0ubuntu1 Store music lens for unity
ii unity-scope-video-remote 0.3.4-0ubuntu1 Remote videos engine
ii unity-services 5.6.0-0ubuntu4 Services for the Unity interface