FileManager does not upload empty folder after selecting it in file dialog window

[petrenkonikita112263]

Why do I consider this as a bug? I'm a fan firstly create a local folder structure on my machine and then have same folder structure in XWiki FileManager instead of manually creating each folder and subfolder in a table. And might be situations when at least several folders will be empty. At the time, I can achieve it by drag & drop operation, but not via file dialog window.

Prerequisites:

• XWiki instance 13.10.
• Latest version of File Manager (Pro).
• Trial license
• To have locally any empty folder with or without subfolder (also empty)

Step to reproduce:

1. Navigate into FileManager.WebHome page
2. Click "New File" button
3. Select "Enable folder selection"
4. Click "Browse..." button
5. Find desire empty folder for uploading process in dialog window
6. Select it, press "Upload" in alert window in browser Are you sure you want to upload all files from “Project Arhive”? Only do this if you trust the site. (the message may differ depending on the browser used)
7. Refresh FileManager table

Actual result:
Table of FileManager is empty - no folder was uploaded.

Expected result:
Folder was uploaded

As I mentioned at start, if I drop folder by draging it into upload area, it'll be successfully uploaded.