Privileged installation problem: uninstalls F-Droid

Hi Thanks for your work in F-Droid. My Androids cannot live without it I have upgraded F-Droid from 0.92 to 0.93-test, just to test it :) After the upgrade, a notification appeared suggesting to install F-Droid as a system app (I have a rooted phone with Cyanogenmod 7.2 - Android 2.x). I accepted the suggestion and the application warned me that it was going to take 10 seconds and I had to relaunch manually F-Droid. Ok. Then, it said "installing..." and after that, F-Droid got uninstalled, and nothing else happened. I rebooted and the application was not there.

I tried to download F-Droid from the website and upgrade again. After I upgraded, no notification appeared, but I went to "settings" and then "Expert" and tried to enable the last checkbox, and then it suggested again to install F-Droid as system app. I accepted again, and obtained the same result (F-Droid uninstalled).