Tested on Samsung Galaxy S6 Android 5.1.1 MCPE 0.14.2

Steps To Reproduce:

1. Place any splash potion in a cauldron
2. Put the potion back into the empty bottle and observe that yes, it's still a splash potion
3. Put the splash potion back in the cauldron
4. Unload and reload that chunk (for example, quit and reload that world or go to the nether and come back, or run far away and come back, etc.)
5. Fill the empty bottle from the cauldron
6. Observer that the potion is now a regular potion.

I expected:

1. That filling the bottle would yield the splash potion, not the regular one.
2. That saving the chunk would save the splash potion damage ID not the regular potion damage ID.

Edit by kaleb418:
It also can affect the time the potion effect lasts.