Bone mealing grass seems to cancel fall damage

I was trying to jump off of a platform and bone meal a jungle sapling to land on the vines, but I missed, and used my bone meal on some nearby grass, but when I landed, I took no fall damage.
https://1drv.ms/v/s!AqlS3fiQaZJ0r1ITD72Xl5bhde-N?e=SodoVO