Location bar oscillates on mouseover

If the the window size and path length are just right, the location bar will rapidly change position when the mouse pointer hovers over it. A screencast is attached.

A particular folder that I frequently use causes this to happen when Nautilus is snapped to half of the screen.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: nautilus 1:3.6.3-0ubuntu14
ProcVersionSignature: Ubuntu 3.8.0-17.27-generic 3.8.6
Uname: Linux 3.8.0-17-generic x86_64
NonfreeKernelModules: nvidia zfs zunicode zavl zcommon znvpair
ApportVersion: 2.9.2-0ubuntu5
Architecture: amd64
Date: Wed Apr 10 22:37:14 2013
ExecutablePath: /usr/bin/nautilus
GsettingsChanges: b'org.gnome.nautilus.window-state' b'geometry' b"'838x484+2888+1332'"
InstallationDate: Installed on 2013-04-07 (3 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130402.1)
MarkForUpload: True
ProcEnviron:
 PATH=(custom, user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: nautilus
UpgradeStatus: No upgrade log present (probably fresh install)