Sacred Purification Healing Enemies

[SandTrout]

Sacred Purification is sometimes, but not always, healing non-undead enemies, when it should only heal allies.

Specifics: The divine caster is now able to channel the sacred powers bestowed upon him by his holy Deity. The character can spend one of his daily Turn Undead attempts in order to unleash a wave of positive energy that will heal all allies for damage equal to (1d6 damage per two turning levels [max 15]) + Charisma Modifier. The positive energy, at the same time, attacks any undead creature caught within range, forcing them to perform a Will Save for half-damage.

I'm not sure why/when the IFF on this breaks. At first I suspected it had to do with who the enemy was targetting, but that that hypothesis did not survive testing.

[Louvaine]

The area affects a Colossal radius and heals any non-undead within the radius. This does include hostiles. Undead are dealt Divine damage of equal dice, with a Will save for half. Incorporeal creatures are treated as Non-Undead, and subsequently healed.

https://wiki.bgtscc.net/index.php?title ... rification