When grouping by folder, empty name if folder is not present
When grouping by folder and a device is not present, all the folders from this device have an empty name if the files are from the device root.
Reproduced on the 0.9.x branch
When grouping by folder and a device is not present, all the folders from this device have an empty name if the files are from the device root.
Reproduced on the 0.9.x branch