MySQL credentials are not build correctly

[RoastVeg]

It seems that in the latest version of master, the credentials are left undefined before they are sent to the bridge, despite State.apply apparently being called multiple times. This results in isServer failures from the bridge, since it sends an empty db open rpc.

[vegalii]

I also had this problem: 'Disconnected from MySQL (Error: Cannot read property 'isServer' of undefined)'，can anybody help us?