What I expected to happen was...:
...for the torch to automatically place itself on the adjacent solid block after trying to place it on the underside of a block.

What actually happened was...:
The torch did not place, and instead crashed the game.

Steps to Reproduce:
1. Place any block in a location where you can access its underside, and place a solid block 1m below and 1m outwards the original block.
2. Attempt to place a torch on the underside of the first block. (Normally, this should correct the placement to the side of the second block.)
3. The game should crash, and upon reboot, the torch will not have been placed.