Menu entries in right-click menu for left panel item not clickable

[Matt Summers]

Seen in artful alpha.

Steps to reproduce:
1. Open Files (nautilus)
2. Right-click an item in the left panel such as "Desktop"
3. Observe right-click menu has appeared.
4. Click on a menu item such as "Properties"
5. menu disappears, nothing happens.

What I expected:
Desktop properties window should appear.

Observations:
* Menu items do not react to hover-over, do not act like regular menu items.
* Seen in ambiance theme, but also tried with adwaita and observed no difference.

Version info:
 nautilus 1:3.25.90-0ubuntu1

$ lsb_release -rd
Description: Ubuntu Artful Aardvark (development branch)
Release: 17.10

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: nautilus 1:3.25.90-0ubuntu1
ProcVersionSignature: Ubuntu 4.12.0-11.12-generic 4.12.5
Uname: Linux 4.12.0-11-generic x86_64
ApportVersion: 2.20.6-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Aug 24 19:34:27 2017
EcryptfsInUse: Yes
InstallationDate: Installed on 2017-08-16 (7 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170815)
SourcePackage: nautilus
UpgradeStatus: No upgrade log present (probably fresh install)

[Matt Summers (devopsmatt)]

This is no longer happening. I haven't installed any relevant packages/updates since this happened. Can no longer reproduce.