Adding Durability with consumehelddurability doesn't appear to be working

Using negative values to heal Item durability is not working.

Expected Result: durability of held item (and the one executing skill) is healed by 1 to 3 points Current Behaviour: durability of held item is decremented by 2 points

MythicCrucible Version: 2.2.0-SNAPSHOT MythicMobs Version: 5.10.0-SNAPSHOT-23c98087 Paper Version: 1.21.8-60-main@29c8822 Item Skill:

Durability:
  Skills:
  - consumehelddurability{amount=-3to-1} @Self
  - effect:particles{particle=block;amount=100;hS=1;vS=1} @Self
  - message{message="Repaired!"} @Self