workspaces view freezes with hotcorners

Not sure but I guess this is a pantheon bug...

I have two hot corners set up. Top-left for windows overview and bottom-right for workspaces...

There is something wrong when I quickly move to top-left and than bottom-right... the mouse stoppes responding and also pressing esc does not help...everything just freezes in a workspaces view...

This is a very awkvard issue because it also happens accidentally... you think you want to go to top-left (windows overlay) and than quickly change your mind...and than you have to force restart the computer...

Hm I wonder how other people have this hot corners configured...

ProblemType: Bug
DistroRelease: elementary OS 0.2
Package: pantheon 1.290-0~364~precise1
ProcVersionSignature: Ubuntu 3.2.0-35.55-generic 3.2.34
Uname: Linux 3.2.0-35-generic x86_64
ApportVersion: 2.0.1-0ubuntu15+elementary3~precise1
Architecture: amd64
CrashDB: elementary_meta
Date: Mon Feb 4 15:49:45 2013
Dependencies:

InstallationMedia: elementary OS 0.2 "Luna" - Beta 1 amd64 (20121114)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: elementary-meta
SuspiciousXErrors:

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