Comment 34 for bug 1816018

Information from Nordfriese:

Good news, these logs appear only in a corner case, and although there is an underlying problem, it is fixed automatically within 1-2 seconds, so it is not worth fixing this IMHO.
The problem is that some carriers who have been created for certain roads are just about to leave the HQ, and they notice that their target road has been split off into a separate economy before the economies are actually separated.

This delay when splitting the economies has been implemented on purpose to avoid performance issues; and this bug happens you hit that very narrow time window exactly, and an affected worker is pathfinding at this very moment – so as I said, I´m in favour of ignoring this.

https://wl.widelands.org/forum/topic/2786/?page=27#post-27334

I agree.