[GAMEPLAY] Wards can make the tower radar turn green

Placing a ward inside turret range with bots/nobody on the opposing team makes it stay green I've only experimented with minions and the inhibitor turret not

How to replicate Step 1. Place ward inside turret range Step 2. Have a minion step into turret range Step 3. Remove minions from turret range Step 4. Poof. your done, the turret range should stay green until the ward expires