Issue description
The oil tanker departs before it is fully unloaded.
The dock and its modules is full of oil and the ship will sit there and slowly unload when there is oil consumed. But it departs before it is empty.
Expected behavior
Ship should wait until it is fully unloaded before it makes another trip.
Reproduction steps
Load save EarlyDepart.
The ship is just departing here for the second time in a row without getting fully emptied.
Wait for it to come back, wait some more for the normal consumption to use up the crude oil.
And it will leave again too early for a 3rd time.
Note: If I increase the draw by upgrading the 2 cache-tanks in front of the dock, the ship will empty fully.
So it seems to be a problem with low draw/consumption.
Game version
v0.4.8
Attachments
EarlyDepart.save
Files not imported: EarlyDepart.save
