Einstein breaks the multi-screen display settings

[Volodya]

On the multi-screen display when i start Einstein it changes the settings to the single display. And these settings propagate even after the application derminates.

To reproduce:
Start Einstein
Exit Einstein

What happens:
The screens are now mirrored.

What i expect to happen:
At the very least the settings should go back to normal after Einstein exits.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: einstein 2.0.dfsg.2-9
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Nov 19 21:41:48 2014
InstallationDate: Installed on 2014-10-02 (48 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
SourcePackage: einstein
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Simon Waters (qpayd-simon-44eck)]

I see the same bug in Debian 9, there is a corresponding Debian bug https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=546671

A workaround on Debian 9 is to specify the screen to use:

export SDL_VIDEO_FULLSCREEN_HEAD=0