Cho gath vs heim turrets

I noticed this bug after 2 or 3 games playing against heim as cho gath. When I would use rupture on heims turrets they would float in in mid air. They are still targetable but the problem is that when they are in mid air they pushed back but they still have the same attack range. This makes heims turrets a lot stronger and harder to take takedown. I noticed this twice in aram and once in ranked. I was using the Loch Ness cho gath all three times. Edite* when I say same attack range I mean the range the turret had on the ground.