Hopper minecarts glitch when pushed along a curve by a furnace minecart

The bug

If a furnace minecart is pushing a hopper minecart through a powered rail (turned off) when it tries to turn, it glitches.

How to reproduce

1. Put down a few powered rails and don't turn them on
2. Put down two normal rails to make one turn
3. Place another few powered rails beside the other powered rails to make another turn
4. Place a furnace minecart with a hopper minecart in front of it
5. Start the furnace minecart