Forage harvester - Full grain tank [BUG_SP]

[ghod90]

Steps to reproduce
Setup forage harvester (krone x1180)for a grass field
Add silage additive
Attach trailer
Generate course and hire worker

Actual behavior
Forage harvester moves to start point starts mower and complains that grain tank is full with trailer empty.
Attempted with auto drive controlling a trailer as well same behavior with trailer on a second vehicle. Giants worker can harvest the field as expected with a trailer nearby/attached.

(PS) Upon further testing it seems began working after using a small amount of silage additive, perhaps its reading that tank as the storage?

Expected behavior
Harvester follows course and stops when full or worker pulled trailer moves away (as giants worker will)

Screenshots
If applicable, add screenshots to help explain your problem.

Courseplay version
Version used: 7.0.0.8

Log
Please attach a log with all debug channels active.
For help with the debug channels,
please check out the readme at the github front page.

Map
Map played on.

Vehicles/ implements involved
Krone X1180 with and without a trailer and xdisc 620 header

Relevant script mods
Autodrive also used for testing trailer nearby

[Tensuko]

#109