Comment 0 for bug 1554878

Since being standardised XDG_CURRENT_DESKTOP supports specifying multiple Desktop Names seperated by a colon, however many of the patches in Ubuntu pre-date this change so don't correctly support the current format in some case.

Now a days XDG_CURRENT_DESKTOP will look like
Unity
GNOME (gnome-shell)
GNOME-Classic:GNOME (gnome-shell classic mode)
GNOME-Flashback:Unity (Flashback sesison, although upstream and debian use GNOME-Flashack:GNOME for this)

Many of the patches only check for == "Unity" or == "GNOME", so misbehave for the latter cases in the list above.

I suspect this will be more widespread than just nautilus, but fixing that would be a good start. Since most of this code is still Ubuntu specific (upstream mainly use XDG_CURRENT_DESKTOP for onlyShowIn etc), probably taking the last value in the string would get the desired result of Unity vs GNOME3 behaviour

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: nautilus 1:3.18.4.is.3.14.3-0ubuntu2
ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
Uname: Linux 4.4.0-8-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CurrentDesktop: GNOME
Date: Wed Mar 9 15:04:36 2016
SourcePackage: nautilus
UpgradeStatus: Upgraded to xenial on 2015-11-28 (102 days ago)