Bug - Game crushes after worker steal from City State

[JJOne]

In the following save, I declare war on Lhasa and steal their worker with my spearman. Between turns, Alex requests that I make peace with Lhasa. I do that the next turn, and the game crushes.
Had that in more games.
V1.0.217, no mods.
View attachment AutoSave_0096 BC-2560.Civ5Save