Unknown bug in scaffolding_manager - develop 2871

Some errors showed up while I was doing nothing. Some of my workers were mining, my carpenter and farmer doing their jobs.

As I wasn’t doing anything specific, nor any kind of building were being built, I haven’t got a clue what triggered them or how to reproduce the errors.

Guess that makes this bug report kinda useless, but I thought I’d put them out there anyways :slightly_smiling: