Starting over when upgrading from lite to full?!

I just upgraded from the Lite version to the Full version and I have to completely start my village over!?!! All of the work Ive done on the Lite version is lost. Why isnt the lite version just updating to a full one so I keep all of my progress? Im deleting both versions and this will be the last VV I purchase :/

Danimearly about Virtual Villagers 2, v1.1.0