why does it skip the auto-uninstaller when the auto-uninstaller feature is on?

gistfile1.txt

C:\temp\fakepackage> choco feature
Chocolatey v0.9.9.0
checksumFiles - [Enabled]
autoUninstaller - [Enabled]
allowInsecureConfirmation - [Disabled]
C:\temp\fakepackage> choco install windirstat
Chocolatey v0.9.9.0
Installing the following packages:
windirstat
By installing you accept licenses for the packages.

windirstat v1.1.2.20140225
 Found 'chocolateyInstall.ps1':

$packageName = 'windirstat'
$fileType = 'exe'
$url = 'http://prdownloads.sourceforge.net/windirstat/windirstat1_1_2_setup.exe'
$silentArgs = '/S'

Install-ChocolateyPackage $packageName $fileType "$silentArgs" "$url"


 Do you want to run the script?
 1) yes
 2) no [Default - Press Enter]
 3) skip
1
 Installing windirstat...
 windirstat has been installed.
 windirstat has been installed successfully.

Chocolatey installed 1/1 package(s). 0 package(s) failed.
 See the log for details.
C:\temp\fakepackage> choco uninstall windirstat
Chocolatey v0.9.9.0
Uninstalling the following packages:
windirstat
Which version of windirstat would you like to uninstall?
 1) None [Default - Press Enter]
 2) 1.1.2.20140225
2
You selected windirstat v1.1.2.20140225

windirstat v1.1.2.20140225
 Skipping auto uninstaller - No registry snapshot.
 windirstat has been successfully uninstalled.

Chocolatey uninstalled 1/1 packages. 0 packages failed.
See the log for details.
C:\temp\fakepackage> choco feature
Chocolatey v0.9.9.0
checksumFiles - [Enabled]
autoUninstaller - [Enabled]
allowInsecureConfirmation - [Disabled]
C:\temp\fakepackage>

The same problem.
I can't uninstall any package now, even though I have turned autoUinstaller on already.