Nautilus opens a new window when clicked to open an existing window

Open the new 'Files' browser and access a directory which is not in the partition containing root and then minimise the window. If now you click on it's icon in the unity panel to display the window again, the browser opens a NEW window displaying the home directory.

This happens only when a directory external to the root drive is opened initially. Also, the problem is resolved if the 'Files' icon is not docked on the launcher.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: nautilus 1:3.6.3-0ubuntu16
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Fri May 17 18:09:54 2013
ExecutablePath: /usr/bin/nautilus
GsettingsChanges:
 b'org.gnome.nautilus.window-state' b'geometry' b"'962x566+189+61'"
 b'org.gnome.nautilus.window-state' b'sidebar-width' b'176'
InstallationDate: Installed on 2013-05-08 (9 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
ProcEnviron:
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
 PATH=(custom, no user)
 LANGUAGE=en_GB:en
 LANG=en_GB.UTF-8
SourcePackage: nautilus
UpgradeStatus: No upgrade log present (probably fresh install)