Holy sweep hammers do not convert with phys to lightning

Apparently the hammers from holy sweep do not convert phys to lightning. I keep dying to a phys reflect map while my sweep is 100% elemental.

I take damage/die when hammers fall, not during the first attack. Looks like the dmg is either not fully converted or doesn't follow conversion rules at all.

Bug Report ID: #2,915,491,215

Yeah I tested this as well. Hammers that drop are doing physical damage. I think this has to do with physical to lightning