double cursor after sliding app icon on the dock

[Kamicko]

After pooling some application on the dock, the cursor become duplicated and shows the application icon hooked in between those two cursors.

ProblemType: Bug
DistroRelease: elementary OS 0.3
Package: elementary-desktop 1.372+419~ubuntu0.3.1 [origin: LP-PPA-elementary-os-daily]
ProcVersionSignature: Ubuntu 3.16.0-34.45~14.04.1-generic 3.16.7-ckt8
Uname: Linux 3.16.0-34-generic i686
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3.8
Architecture: i386
CrashDB: elementary_meta
CurrentDesktop: Pantheon
Date: Thu Apr 9 21:31:13 2015
InstallationDate: Installed on 2015-04-08 (2 days ago)
InstallationMedia: elementary OS 0.3 "Freya" - Daily i386 (20150312)
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: elementary-meta
SuspiciousXErrors:

ThirdParty: True
UpgradeStatus: No upgrade log present (probably fresh install)

[Ivan Vrljić (vrlja92)]

Duplicate of
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1390625