Kled's W and brushes (Visual bug)

Recently when I played kled i noticed that when you move back and forth in the brush sometimes your axe (or whatever this is) lights up for a fraction of a second like when your W is active even though you have it on CD or you don't even have any points added to it yet. I know it's nothing game-breaking but it just hurts my eyes. Unfortunately I have no video showing this but It's not really needed since it's really not hard to see this bug in game (It occurs really often).