The trademark owner directly contacted Google so I had no chance to fix the issue in a proper way that ensures a seamless change on the user side, so right now I really do not know how to change the application as well as to keep your data intact. Funny enough, I’ve just finished an update that enabled proper backup/restore functionality, I just can not publish it. I will do my best to solve this issue and keep you updated.
UPDATE:
Four days later and still no solution, even better, not a single line of response from the Android Market Support.