Cloning this repository:

git clone git://gitorious.org/gsettings-gtk/gsettings-gtk.git gsettings-gtk
cd gsettings-gtk

Add this repository as a remote to an existing local repository:

git remote add gsettings-gtk git://gitorious.org/gsettings-gtk/gsettings-gtk.git
git fetch gsettings-gtk
git checkout -b my-local-tracking-branch gsettings-gtk/master_or_other_branch