PSA: Attacking enemy wards that are disabled by Control Wards/Sweeper grants the enemy vision.

I've just had a few games where this has come into play, and my supports think I'm flaming them when I say "Next time, don't hit the ward, it gives them vision." Nothing negative, just some constructive advice, couple times it lead to us losing drag or baron, but it's an honest mistake and not a very obvious mechanic, so it's honestly nothing to get upset about, but I figured I'd toss this here in case any of you guys didn't know this.