crash in creative, after detonation of TNT when not looked at.

TNT crash if another redstone device would also be powered (may only be piston varieties.)

What I expected to happen was...:
The TNT to go off normally.

What actually happened was...:
The game crashed.

Steps to Reproduce:
1. Place some TNT and use a redstone device to activate it.
2. Run away, never look back, with a piston nearby that would be powered by redstone device.
3.Watch out for a crash report.