High level of Instant Health can kill players

Splash potions with high level (126) Instant Health can kill players instead of healing.

How to reproduce:

1. Give yourself a splash potion of Instant Health 126

   • /give @p minecraft:splash_potion{CustomPotionEffects: [{Id: 6, Amplifier: 125, Duration: 600}]}

2. Use it on yourself
3. You've been dead