Harvested ichorpuff plant still affects neighbours

Ichorpuff plants slow down the aging of surrounding plants and reduce their efficiency. But if you harvest them and plant new seeds, those new seeds seem to be still affected by the harvested ichorpuff plants.

Here I show an illustration, where my growing green rots are affected by non-existing ichorpuffs (that I just harvested). I got the same issue by planting baker's wheat seeds.

Refreshing the page fixes the problem.