Custom potions lose NBT after brewing

The bug

Custom potions lose their NBT after adding ingredients in a brewing stand.

Reproduction steps

1. Create a potion item with custom effects

   /give @s minecraft:potion{Potion:"minecraft:strength",CustomPotionEffects:[{Id:14b,Amplifier:0b,Duration:1200,Ambient:0b,ShowParticles:1b,ShowIcon:1b}],CustomPotionColor:255}
   

2. Place the potion in a brewing stand and add for example Redstone Dust as ingredient
3. Once brewing finished, look at the result potion
   The custom effect got lost