[READ] Manure with cows and pigs

[hpmc13]

- PC/Mac/PS4/XB1: PC
- Vehicle/Tool/Model/Object: Manure spreaders (any) with helpers; large cowshed, large pigsty.
- Issue: See below
- Single- or Multiplayer: Single
- Steps to reproduce: Turn on Manure Helper Refill from Pigs or Cows
- Does it happen on a standard map without mods yes/no Yes

When using a helper to spread manure with the option to use the manure from the cowshed or pigsty automatically, the manure is drawn only from the middle of the pile. When the middle is depleted, the helper will stop with the message that the tank is empty. There is still manure in the back and front of the manure pile. Pushing some into the empty, middle of the pile will allows the worker to continue but only until it is again depleted.