Potion drinking duplication

Step 1. Have two potions in your inventory.
Step 2. Start drinking one potion.
Step 3. When you are drinking the first potion, quickly switch over to the other potion in your inventory hotbar without stopping consuming the first potion. The original potion will be replaced with the potion you switched to.

I haven't tested this in survival but if it does work in survival then it would be an interesting sort of "duplication glitch".