Mindslayer "Gem Eater" bug

[dreast]

Bug type: Gameplay

To reproduce: Remove all mindslayer-only talents from a mindslayer at startup (class and general). Place one point into a mindslayer talent (class or general) to create the head slot. Place a gem or other item with "on wield" abilities in the headslot. Enter the level-up screen and remove and replace the talent point that creates the head slot. The item will dissappear; however, the "on wield" abilities will remain permanently modifying the character's stats. Repeat ad nauseum. Add alchemy gemcrafting tree for flavor.

To fix: Ensure that the head slot can not disappear, by marking talents that create it as "permanently changing the world."

Note: This bug applies to adventurer characters as well; however, since adventurers are not made to be balanced, this is not a large concern.