unity://running-apps position in launcher ignored during startup

IN SHORT:

The position of unity://running-apps in the dconf setting /com/canonical/unity/launcher/favorites is being ignored during startup (login).

DETAILED INFORMATION:

I will explain this using an example, which makes it easier to explain and understand.

Suppose that I have Nautilus and Firefox (+ workspaces and devices) pinned to the Unity launcher, in that order.
When I open, for example, gedit, its icon appears below Firefox.
"dconf read /com/canonical/unity/launcher/favorites" returns:
  ['application://nautilus.desktop', 'application://firefox.desktop', 'unity://running-apps', 'unity://expo-icon', 'unity://devices']

If I move Firefox's icon to below gedit (not pinned), any new applications that I open that are not pinned appear above Firefox's icon, even after closing gedit.
"dconf read /com/canonical/unity/launcher/favorites" now returns:
  ['application://nautilus.desktop', 'unity://running-apps', 'unity://expo-icon', 'unity://devices', 'application://firefox.desktop']

'unity://running-apps' represents the applications that are not pinned, and defines where those applications should appear in the launcher. At least that's what it looks like.

The problem is that, after restarting the session or rebooting, 'unity://running-apps' is ignored, and apps that are not pinned appear below the last "application://..." icon, even if it's the last one.
But "dconf read /com/canonical/unity/launcher/favorites" still returns:
  ['application://nautilus.desktop', 'unity://running-apps', 'unity://expo-icon', 'unity://devices', 'application://firefox.desktop']

The "favorites" are also maintained in gsettings:
"gsettings get com.canonical.Unity.Launcher favorites" returns the same results above.

IMPACT:

Because of this bug, users cannot pin applications to the "bottom" of the launcher, as unpinned apps will always appear below the last pinned application.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.2.2+14.04.20140714-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7
Uname: Linux 3.13.0-37-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CurrentDesktop: Unity
Date: Thu Oct 9 19:14:09 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-06-17 (114 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)