[MCPE-186591] Custom skin set to slim model changes to classic/wide model after restarting the game

When you using custom skin, and the models is set to slim model, everytime you restarting the game it will changes to classic model

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Steps to reproduce:

Import any custom skin, and then select slim model
Close your game and then reopen it

Expected results:
Custom skin models doesn't changes and keep using slim model

Observed results:
Custom skin models changes to classic model after restarting the game

Workaround:
Until these bug got fixed, for now you can create a custom skinpacks and add it to your games, since these bugs does not apply to skinpacks it should be fine, I've attached a sample skinpacks to the report, here how you do it:

Download MCPE-186591.mcpackand extract it using your preferred File Manager (i recommended using ZArchiver for Android and 7-Zip or WinRAR for Windows)
Copy your skin files inside the extracted skinpacks folder, after that rename your skin files to slim1.png, slim2.png, slim3.png, slim4.png, or slim5.png
Zip the folder again, then rename the extension from .zip to .mcpack
Import it to your game