Woodland/Druid Perk Persists on board

Had 2 star Maokai, Ivern, Neeko

Maokai had 2 items, Giant Slayer and Ionic spark. No items on the other two.

Sold Maokai, put Ionic spark on Ivern. Didn't see if there was causation but I noticed the bug after.

I retained the Woodland bonus and it said I had 3 Druids on-board the entire game.