When refreshing the Penitence debuff on a target, the slow/incoming damage amplification values don't update

Repro:
1. Cast Penitence on an enemy
2. Level Penitence up
3. Recast Penitence on the same enemy with the new level

Result: The debuff gets refreshed, but the values don't update.

Expected: On refresh, slow and damage amp update to the new level.