Problem:
When i push a minecart whith tnt off of a unpowered powered-rail it doesn't explode.
Additional comment:
I dont know if that's what it's supposed to do, but when pushing it off a normal rail it explodes. So i don't see the logic.
How to reproduce:
push a minecart off an unpowered powered-rail
It didn't explode because the speed is not high enough. Even for normal rails if the cart derailed in a low speed it will also not explode.