Heimerdinger's turrets hover after getting knocked up into the air by ChoGath

When playing as Heimerdinger against Chogath, ChoGath's Rupture ability will sometimes knock one of Heimerdinger's turret into the air and the turret will stick there, hovering above the battlefield. This bug does not appear to affect game play or the turrets ability to fight, seems to just be a glitch. It is not a consistent glitch but I have observed it on at least 3 occasions during the last week.

1. Setup a series of Heimerdinger's turrets.
2. Target the turrets with Rupture from ChoGath.
3. Observe for turret being knocked into the air.
4. Watch for glitch of turret hovering instead of landing back on the playing field.