Less powerful, eh?
Hm.
That's not what I'm getting when I use it:
Needless to say, an enemy WAS standing to the right of me there, until that happened.
I'm going to take a wild guess here, and say that that is probably not supposed to happen.
Ah, betas. Some bugs can be pretty entertaining, I think.
Edit: Water Sine is doing it too, now.
Edit 2: Ok, it was an item that I had that was causing it. Triple-shot item. Once that broke, this stopped happening.