Swap Jump and Sneak still doesn't save

The changelog for 0.12.1 Beta 2 stated that the Swap Jump and Sneak option now saves, but I tried turning on Swap Jump and Sneak, and it still does not save.

What I expected to happen was:
The game would save the Swap Jump and Sneak option.

What actually happened was:
The game does not save the Swap Jump and Sneak option at all.

Steps to Reproduce:
1. Go to Options.
2. Turn on Swap Jump and Sneak.
3. Close and re-open Minecraft PE.
4. Go to Swap Jump and Sneak and you will see that the option did not save.

The Tablet I am using is "Nvidia Shield Tablet".