Overgrive sync folder can not be changed during initial set up

One of the nice synchronization solution with Google drive and Linux is overGrive. However there is a bug in initial setup dialog for version 3.1.3 beta. I have just tried it in Debian testing and couldn't change the sync folder, which was by default /home/username/Google Drive. Clicking the button "change folder" didn't work. After I run the program from the terminal instead of just clicking the icon, I've realized that this occurs because '/home/username/Google Drive' doesn't exist. So I created that folder and then the changing procedure with folder select dialog run OK. In the end I had to delete that default folder. Please, The Fan Club, fix it on will.

I am writing it here because sadly I have no permission to submit the contact form on maintainer's pages :-/