Ivern multiple grove bug

I recently encountered a bug where ivern can repeatedly create groves in one camp. I was on red side krugs and i had already made a grove there. I was shocked to find that when I accidentally clicked on the krugs again, a new grove started and i lost another chunk of my health and mana. I tried again and again and every time it reset the grove and took another chunk of health and mana. This forced me to recall to heal and put me somewhat behind the enemy jungler. Please fix this so people who accidentally click a grove before it's done don't lose unnecessary health and mana.