Comment 19 for bug 536367

I have a feeling that the second carriers (animals) are primarily involved in this bug.
I see many segments where my barbarians work, but not the oxen, thought they should.
But it may be just the effect that the wares that should trigger the second carrier to work are forgotten anyhow.
Forgotten by the human carriers as well, of course.
I had meanwhile reached the maximum allowed number on some flags.