User cannot use folder that was uploaded or created with files when folder name starts with dot

[petrenkonikita112263]

Prerequisites:

• XWiki instance 13.10.
• Latest version of File Manager (Pro).
• Trial license
• To have local folder with name .system and at least one file (content isn't required)

Step to reproduce:

1. Navigate into FileManager.WebHome page
2. Click "New File" button
3. Select "Enable folder selection"
4. Drag or Browser folder .system
5. Refresh FileManager table
6. Select from hierarchy tree newly uploaded .system folder

Actual result:

Infinite load the result of its content in FileManager table

Whereas the issue doesn't happen, if you select option "Open in New Tab"

Extra steps:
Manually creating folder .system gives also infinitive loader in table

Expected result:
FileManager table displays content of folder with dot at the beginning of the the name.

I see similar issue was reported on free version FILEMAN-53