Error showing temporary hidden files and folders when rotating the screen

Expected behavior

Temporary hidden files and folders were supposed to be shown even when rotating the screen.

Actual behavior

The hidden folders and files hides again after rotating the screen.

How to reproduce

Download Simple file manager from F-DROID
Open the app
Go to the menu

Tap on 'temporarily show hidden'

Hidden files will be shown

Rotate the screen

The hiddens files will hide again

• Browser: Simple File manager 3.4.0
• Operating system: Android 8.1.0

Recording Of The Bug