Unsafe aliasing in rust after adding first federation

[TonyGiorgio]

recursive use of an object detected which would lead to unsafe aliasing in rust

I think this is because how I'm swapping in GlueDB after it inits a federation for the first time if none existed. Doesn't seem to hurt anything but probably not safe. A better approach would be to empty init GlueDB but do not start it until a federation is added.