Skilltree switch

Old hosted by me world has skilltree configuration A (character - Wendy).
Then I pick Wendy next time on public server, I changed skilltree config to B.
Then I launch my old world after that, I noticed that it have skilltree config B instead A.
Other: old world has gestalt Abigail, config B have shadow afinity. After switching skilltree Abigail still gestalt even after death, both mine and her.
Murdering creature in inventory will make Abigail looks dark and then normal, but functionaly is steal gestalt in both conditions. Not sure if it have buff from murdering or not