User profile reset on re-installation of Dragon

I want to do a clean re-install of Dragon, keeping my user profile, but couldn’t get this to work.

I ran the uninstaller with “Remove user profile” NOT set. Noted that C:\Users\MyUser\Appdata\Local\Comodo\Dragon\User Data was untouched except that the (empty) file “First Run” had been deleted.

The subsequent installation didn’t change much of …\User Data but the initial launch of Dragon created a completely new version of the profile. Disabled extensions were re-enabled, my added extensions gone and customized preferences set to default.

Experiments showed that if I create an empty file C:\Users\MyUser\Appdata\Local\Comodo\Dragon\User Data\First Run (what the uninstaller deleted) after uninstall but before installing, everything works fine.

So, - Is this workaround OK or is it asking for trouble? What say the experts?

  - And does this sound like a bug or am I doing something wrong?  

I looked in the forum re. this. My apologies if I missed the answer.