The bug

Running /data get can return imprecise values depending on the value type.

How to reproduce

1. /summon armor_stand ~ ~ ~ {Pose:{Head:[0.01f,0.01f,0.01f]}}
2. /data get entity @e[type=armor_stand,sort=nearest,limit=1] Pose.Head[0] 10000
   → Result is 99
3. /data get entity @e[type=armor_stand,sort=nearest,limit=1]
   → NBT says [0.01f,0.01f,0.01f]. /data get is incorrectly rounding 0.01f to 0.009999