How to reproduce :

• use the resource of the demo repository,
• move the "Images fonctionnalités En" folder into the "Images fonctionnalités" folder
• Click on "Images fonctionnalités En" folder
• In the ribbon, click on search button
• do not enter any criteria and lauch a research
  > there is no results

Make the same test in a folder one level above :
> there is results