VERSION:
1.6.5 for Minecraft 1.7.10
Forge: 10.13.2.1236
Forge Multipart: 1.1.0.314

DESCRIPTION:
The game crashes with a NullPointerException if a turtle uses turtle.compare an a Forge Multipart. It does not matter if there is an actual item in the current selected slot with which could be compared with, nor does the kind of turtle nor what multipart you compare to (even two torches in the same blockspace will do).

EXPECTED RESULT:
Not to crash.

REPRODUCTION STEPS:
Place any turtle in front of a multipart, access the turtle, type "lua" and then

turtle.compare()

SCREENSHOT:




CRASH REPORT:
http://pastebin.com/GBhKQ5Dp