1. Mount a SquashFS image
2. Make sure SquashFS image mount is shown in the Media Menu
3. Check "Hide SquashFS entries" checkbox on the "Panel/Media Menu/" page
4. Make sure SquashFS image mount is no longer shown in the Media Menu
5. Uncheck "Hide SquashFS entries" checkbox on the "Panel/Media Menu/" page
6. Make sure SquashFS image mount is shown again in the Media Menu
7. Make sure the root mount point is shown in Media Menu
8. Add / to "Hide following mountpoints:" list on the "Panel/Media Menu/" page
9. Make sure the root mount point is not shown in the Media Menu anymore
10. Remove / to "Hide following mountpoints:" list on the "Panel/Media Menu/" page
11. Make sure the root mount point is shown again in the Media Menu