Craftmen glitch when the solstice event ends

[Saucistophe]

A nasty and interesting bug here.

I had about 40 craftmen affected to thermite, when the solstice event ended and I got a negative number of craftmen affected.

Note that I have -10/45 and cannot get over 35, but my foundry and fabrications add up to 45.

Here is my save! evolve-2022-6-23-0-36.txt