Confusing keyboard navigation in dash (right/left give inconsistant changes)

[Steve Magoun]

Keyboard navigation in the dash does not work as expected - pressing left arrow after pressing right arrow does not necessarily return you to the original location.

To reproduce:
1. Press the super key to open the dash
2. Press down arrow twice to select the first application in the list of applications
3. Press the right arrow repeatedly to select the right-most application in the list of apps
4. Press the right arrow again. The "Filter results" button is selected
5. Press the left arrow

Expected results:
The application selected in #3 is re-selected

Actual results:
The input field is selected

This was surprising on a couple of levels:
1) The filter results button is directly above the search results, not to the right
2) You can't retrace your steps using the arrow keys: tapping the left arrow does not 'undo' the effects of tapping right arrow
3) The filter results button is immeidately to the right of the search input field, but you can't get to the filter results button by pressing the right arrow when the search input field is selected. Therefore It's extra-surprising that right arrow gets you to filter results from other places in the dash.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.1.2+14.04.20140328.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7
Uname: Linux 3.13.0-20-generic x86_64
ApportVersion: 2.14-0ubuntu1
Architecture: amd64
CompizPlugins: [core,commands,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CurrentDesktop: Unity
Date: Mon Mar 31 13:28:12 2014
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-precise-amd64-20130203-1
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-12-02 (118 days ago)
InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20130203-13:50
SourcePackage: unity
UpgradeStatus: Upgraded to trusty on 2014-02-12 (46 days ago)

[Sebastien Bacher (seb128)]

ideally right at the end of the first line would wrap to the first item on the next one