Dual-wielding bug

[Fayne]

So, I made a bug report over this, but I thought I'd provide more info on this here to specify the issue more clearly.

It seems that energy consumption when fighting with two weapons only comes from whatever you are holding in your right hand. For instance, when I swing a shortsword, it takes -4 energy. When I swing a falchion, it takes -6 energy. However, when I hold them both, if I hold the shortsword in my right hand, it only takes -4 energy per round, even if I successfully attack with both weapons. If I hold my falchion in my right hand, it takes -6 energy. The same thing happens no matter what the weapon type is. I tested it with my mace as well, same results.