I committed and uploaded a bugfix for the Version Sidebar F-Spot Plugin. Version 0.6.4 fixes a bug affecting some other parts of F-Spot, too. The version sidebar is now clickable again.

By the way I branched the Addins and the master branch now depends on F-Spot’s core 0.7, which replaces Core with App.Instance.

Update: The tabbed sidebar is not working at the moment with 0.7 (git), due to a redesign in the f-spot source. I am still not sure how I redesign the tabbed sidebar code to get it work with the actual design or if the f-spot code will be changed again. 0.6 works fine.

See my F-Spot Addin page for more information.