[CLIENT] Sightstone mouse-over ward counts are sometimes incorrect

Ward counts are incorrect (see screenshot). e.g. It reads "73/3"

It seemed to slowly increase throughout the game, first I noticed it was in the 40s, then in the 50s, etc. It would sometimes correct itself (show 3/3), then it would go back to showing a large number.

I only had this happen in one game I played today. Not sure how to reproduce :(