This change isn't needed. IVU, like all other invis spells checks the db to see what sees through it and what doesn't. So long as your db is setup correctly, the spell will work correctly.
I just tested IVU on Grand Creation, with it on I was KOS to animals, giants, goblins, etc, but indifferent to Skellies and zombies. So it is working correctly, meaning the newest PEQ CVS will having working IVU.
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