Changelog mentions: " * Sidebar: - Add a recent files place", though it's not seen atm in Ubuntu

[Doug McMahon]

Was also mentioned in a recent commits , didn't see in git builds either
http://bazaar.launchpad.net/~vcs-imports/nautilus/master-git/revision/16103

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: nautilus 1:3.5.4-0ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-5.5-generic 3.5.0-rc7
Uname: Linux 3.5.0-5-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.4-0ubuntu2
Architecture: amd64
Date: Wed Jul 18 23:20:27 2012
GsettingsChanges:
 b'org.gnome.nautilus.window-state' b'geometry' b"'1071x651+59+24'"
 b'org.gnome.nautilus.window-state' b'sidebar-width' b'173'
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120707)
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: nautilus
UpgradeStatus: No upgrade log present (probably fresh install)

[Sebastien Bacher (seb128)]

Thank you for your bug report, that seems to depend on the new gvfs:

"* Added a recent files backend (using GtkRecentManager)"

It should fix itself when that update is uploaded

[Doug McMahon (mc3man)]

Fixed with the recent gvfs upgrade, 1.13.3-0ubuntu2