stat.damageTaken shows 10 x the amout of damage

When taking damage, the stat.damageTaken says the player took x10 more damage than it did. When taking half a heart of damage, it says you took 10 of damage.

How to reproduce:
-Perform the command "/scoreboard objectives add hit stat.damageTaken"
-Perform the command "/scoreboard objectives setdisplay sidebar hit"
-OPTIONAL: If you want to, disable the gamerule "naturalRegeneration" for more accuracy.
-Take some damage. The bug duplicated the damage taken by 10.