Version 6.5.2 on 1.5.97 Skyrim: Spells with explosions, such as Fireball, are triggering OnWeaponHit() with an incorrect akSource and formtype.

[Dodoshian]

Fireball, and other spells that have an area connected (maybe just with an explosion), will cause any registered weapon hit events on the casting actor to run. The akSource is not None, but the akSource's EditorID is "Unarmed", and the formtype is 41 (weapon). The type is not Explosion or Spell as would be expected.