The only thing I have heard is that electric motors will be treated like glow motors, if the electric motor stops at any point then it's treated like a glow engine had quit and the flight is over.
It is generally accepted (I think) that the pilot can start the electric motor on command with the electronic controls or 2.4 Ghz. I treat that just like starting a glow engine.
I have my electronics (2.4 Ghz transmitter) set up so that I use the trim to start the motor, at this point the throttle stick can go to full idle position and the motor will still be running. Then at the end of the flight I use the trim again to shut the motor down.
We need to bring this up at the Friday Meeting...
Fred