hitting an entity whilst travelling upwards allows another hit during invincibility frames

If a player hits a mob whist they are travelling upwards, they will be able to land another hit on the mob as they travel down before the invincibility frames have ran out.

View a video demonstrating the bug: https://drive.google.com/file/d/1pkrlFQEZ-XL8e6DMFOVfBiyXaHKaySZH/view?usp=drive_link