Skill trees in hosted worlds get overwritten with the latest settings

Pending

Slightly related to the reports on the Don't Starve Alone mod doing this:

Steps to Reproduce

Host a world without caves, reset insight and enter as Wilson with a torch skill then disconnect.
Join another world, reset insight and enter as Wilson with a beard skill then disconnect.
Reconnect to the torch world and disconnect.
Reconnect to the torch world and see that it has the beard skill.