Problem migrating, fixed on my fork

[pitylee]

Hi there,

There was a problem when migrating, I fixed on my fork, you can see below.
Problem was with foreign key on my setup at least.

https://github.com/pitylee/nova-google2fa/commit/d6b25a4038b76809680e4706b9bb5def42b648e4

[h888t]

ran into this issue aswell, can we get this merged?