[Fixed 1.11][Bug 1.10] Looping conveyor paths cause crash

Looks like looping the conveyor paths causes the AI to crash the game from trying to figure out what path the next piece it puts on the conveyor should take.

autosave.zip (36.5 KB)
errors.txt (609 Bytes)
debug.txt (414 Bytes)
drawdebug.txt (849 Bytes)

This was fixed today, ready for 1.11!