The crown is partially working for me in this version, but doesn't appear to be fully working.
Skeletons are largely neutral- unless touched by the player in which they will briefly attack before returning neutral.

However, I cannot seem to activate the process in which these former enemies come to your aid.
(Tested on Forsaken, vanilla Skeleton, modded skeletons)

There is also a minor visual error when the crown is equipped- in which the front part of the crown also appears on the side of the player's head.

should be fixed in 4c6fb06 and 506ee16