so i was having difficulties getting fake players like thaumcraft's golems to use staged items. every time i try, the logs say

"Could not find stage data for FakeThaumcraftGolem. Using default data.
Fake player DEFAULT does not have stage bl. Thay do have []."

I've come across this issue #48 and its attached link referencing a
gameStagesFakePlayerData.json file, however I can't find any in my instance folder. Is it sth i have to create myself or was it introduced in a later version? If it's the latter, is there another way for me to resolve this?