Shuffle doesn't work well with a "recursive folder audio playlist"

To reproduce this issue go to the Directory view then :

• Choose a folder with multiple audio sub-folders
• Click on the 3-dots button then Play
• Click on Shuffle and click on next song multiple times

Results : If the shuffle function hit a new folder, the song played is always the first one.

Expecting results : The song played should be chosen also at random.

Possible solution : always expand the sub-folders in a playlist as soon as VLC play it ?